Listed below are body temperatures from five different subjects measured at 8 AM and again at 12 AM. Find the values
of d and s. In general, what does μ represent?
Temperature (°F) at 8 AM 98.4
98.7 97.5 97.3 97.1
Temperature (°F) at 12 AM 99.0 99.3 97.9 96.9 97.5
Let the temperature at 8 AM be the first sample, and the temperature at 12 AM be the second sample. Find the values
of d and
Sd.
(Type an integer or a decimal. Do not round.)
It should be noted that the sample mean of the difference in temperature will be -0.34.
How to illustrate the information?From the information given, it should be noted that the difference in the temperatures given are -0.5, -0.6, -0.3, 0.1, -0.4.
It should be noted that d is the sample mean while s is the standard deviation.
Therefore, the sample mean of the difference in temperature will be:
= (-0.5 - 0.6 - 0.3 + 0.1 - 0.4)/5
= -1.7/5
= -0.34
The standard deviation of the difference in temperature will be 0.073.
Lastly, u represents the mean of the difference in body temperature at 8am and 12am of the population of all people.
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How much principal must be
invested to earn $36 in 1/2 a year
at an interest rate of 8%?
Answer:
Simple interest: $70.56
Annually compounded Interest: $90.65
Explanation:
A researcher is interested in the effects of watching videos just before bed on the quality of sleep. He has decided to test the
claim "Watching 1 hour of video just before going to bed reduces the number of minutes of REM sleep by more than 10%. "
Which of the following data collection processes would be appropriate? Select only one answer choice.
Select the correct answer below:
Choose a random sample of people and ask them how many hours of video they watched last night and how much
REM sleep they had.
Choose a random sample of people. Randomly select half of them and have them watch one hour of video just
before going to bed, and then monitor their sleep. Have the other half not watch any video and monitor their sleep.
Choose a random sample of people. On multiple randomly selected nights, randomly assign each person to either
watch one hour of video or not watch video and monitor their sleep.
Choose a random sample of people. On multiple randomly selected nights, measure the amount of video they
watch and monitor their sleep.
The data collection process that would be appropriate would be Choice C: Choose a random sample of people. On multiple randomly selected nights, randomly assign each person to either watch one hour of video or not watch video and monitor their sleep.
Why is Random Sample the right answer?Choice C is the best option because it is a randomized controlled experiment, which is the gold standard for establishing causality.
In this design, the researcher randomly assigns individuals to either the experimental group (watching one hour of video before bed) or the control group (not watching any video before bed).
By randomly assigning individuals to the groups, the researcher can control for any preexisting differences between the groups and ensure that any observed differences in sleep are due to the intervention (watching video) rather than other factors.
Additionally, by measuring sleep on multiple nights, the researcher can control for any individual differences in sleep patterns and increase the generalizability of the findings.
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Predict which landforms are made from magma and which landforms are made from lava. Use evidence from the pictures to explain your prediction.
Answer:Landforms created by lava include volcanoes, domes, and plateaus.
New land can be created by volcanic eruptions.
Landforms created by magma include volcanic necks and domes.
Explanation:
How does recycling plastic bags into composite lumber MOST LIKELY benefit ecosystems?
A
Recycling reduces the use of plastic bags.
B
Recycling reduces direct harm to organisms.
C
Recycling reduces mining and drilling for fossil fuels.
D
Recycling reduces carbon dioxide in the atmosphere.
Answer:
B
Explanation:
A rainstorm in Portland, Oregon, has wiped out the electricity in about 7% of the households in the city. A management team in Portland has a big meeting tomorrow, and all 6 members of the team are hard at work in their separate households, preparing their presentations. What is the probability that none of them has lost electricity in his/her household? Assume that their locations are spread out so that loss of electricity is independent among their households.
Round your response to at least three decimal places.
The probability that none of them has lost electricity in his/her household is 64.7%.
ProbabilityGiven:
Electricity wiped =P=7%
Team members= n=6 members
Hence;
P(x = 0) = (6C0)(0.07^0)(1-0.07)^6
P(x = 0)= (1)(1)(0.93)^6
P(x = 0)=0.6469×100
P(x = 0)=64.7%
Therefore the probability that none of them has lost electricity in his/her household is 64.7%.
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Hi, = P(x = 0) = (6C0)(0.05^0)(1-0.05)^6 = (1)(1)(0.95)^6 = 0.735 Edited by abozer on ...
In Center City, the ratio of people to dogs is 4:1, and the ratio of dogs to cats is 3:2. What is the ratio of people to cats?
Answer:
let's say theres 30 dogs
so 4:1 not simplified is 120:30
the ratio of dogs to cats would be 30:20
(3x10 = 30 and we have to do 2x10 as well which would equal 20)
120:20 would be the Ratio of ppl to cats
simplified
120/20 = 6
20/20 / 1
6:1
If the odds against event E are 1 to 19 what is the probability of E
Answer:
18 to 19
Explanation:
it is the opposite
Assuming The Inflation Rate Rises give one Implication That This Increased Inflation Rate Would Have On the Import cost of creative Stamps And Craft Pens From China
The inflation rate will be considerably dependent on the shipping as well as importing costs of the products.
What is the Inflation rate?The inflation rate may be defined as a type of rate at which prices of goods and services increase over a time period, resulting in a decline in the purchasing value of money.
It is a general increase in the prices of goods and services in an economy during the course of the time period. It reveals the strength of the economy.
The inflation rate is directly related to the economy of the country. Higher the inflation rate, the weaker the economy of the country. But it significantly overall depends on the GDP, importing costs, shipping charges, etc.
Therefore, the inflation rate will be considerably dependent on the shipping as well as importing costs of the products.
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If warming trends continue, which of the following could happen to the glacial ecosystem? Choose ALL that apply.
A
Glacial runoff will begin earlier in the year, and as a result, streams will also warm earlier. Warmer streams will affect native fish populations.
B
Glacial melt and warmer temperatures will increase humidity levels in the ecosystem. This will decrease fish populations that thrive in colder climates.
C
Glacial loss will cool parts of the ecosystem, but because overall temperatures are warmer, precipitation will increase. Increased rain will raise stream and lake levels and increase fish populations.
D
Glaciers will melt into nearby bodies of water. The water levels will rise and create an overall cooling effect on the ecosystem, resulting in a net zero temperature change. The fish population will be unaffected.
E
Glaciers will melt into nearby oceans, causing the salt levels of the ocean to go down. This will increase the available habitat for fish and cause an increase in the nearby population.
If global warming trends continues, the options that could happen to the glacial ecosystem are;
"Glacial melt and warmer temperatures will increase humidity levels in the ecosystem. This will decrease fish populations that thrive in colder climates." (Option B)What is global warming?
Global warming is the name given to the occurrence of the continual melting of the ice cap and the negative effects that this can have on the earth.
Thus, it is right to state that glacial melt will decrease fish populations that thrive in the colder climates.
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Answer: C and E
Explanation:
I just took the test trust
To turn left from a one-way street onto a one-way street, use:
To turn left from a one-way street onto a one-way street, a driver should use: the lane closest to the left curb.
What is a traffic signal?A traffic signal is a sign that is erected beside or above roads by a road safety agency, so as to give warnings and instructions to road users such as:
Drivers PedestriansAt some intersections, a driver should use the lane that is closest to the left curb when turning left from a one-way street onto a one-way street.
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helpppppppppppppppp plssssssssssssssssssssss
Answer: A and B.
Explanation: I believe those are your choices because droughts were the cause of society crippling, but it was also because they were located on the Persian Gulf. (Btw: It was located on the Persian Gulf and flat land with poor drainage... are answers I am suggesting).
Hope this helps! :)
A comet is a small object that also orbits the Sun. Comets have highly elliptical orbits. Based on Kepler’s laws, which statement is MOST LIKELY correct about comets? A Comets travel with a uniform speed. B Comets do not have the Sun as a focus. C Comets spend most of their time close to the Sun. D Comets spend most of their time far from the Sun.
Answer:
D. Comets spend most of their time far from the Sun.
ADM Calling lead source in sales team
The ADM Calling lead source in sales team is known to be made up of
Lead CaptureLead AssignmentView Enquiry or Lead HistoryTargets vs. AchievementRole Based Permissions Dashboards & Reports, etc.What is ADM lead?ADM Lead Management is known to be one that gives room for a person to be able to put together and streamline the enquiries that are said to be made from a lot of channels to one cloud-based module.
Note that this is one that helps a person to be able to see company details and also all of their contact records, and see communication history, and others without any form of stress.
The lead source is seen as the main channel via which a lead starts to discovers a company. Therefore, The ADM Calling lead source in sales team is known to be made up of
Lead CaptureLead AssignmentView Enquiry or Lead HistoryTargets vs. AchievementRole Based Permissions Dashboards & Reports, etc.Learn more about sales team from
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How many liters each of a 50% acid solution and a 75% acid solution must be used to produce 90 liters of a 60% acid solution? (Round to two decimal places if necessary.)
The numbers of liters that is needed is 40 liters of 25% solution and 40 liters of 65% solution.
What is the litters about?Note that:
We take x = volume of 25% solution.
We take y = volume of 65% solution.
So, Equation of total volume:
x + y = 80
Hence the equation of amount of acid:
0.25x + 0.65y = 0.45(80)
0.25x + 0.65y = 36
Solve x + y = 80 for x.
x = 80 - y
Then Substitute into the second equation.
0.25(80 - y) + 0.65y = 36
20 - 0.25y + 0.65y = 36
0.4y = 16
y = 40
x + y = 80
x + 40 = 80
x = 40
Therefore, The numbers of liters that is needed is 40 liters of 25% solution and 40 liters of 65% solution.
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helppppppppppppm plssssssssssss
Answer i have the same quiz i have 82% on it
What should you do to judge good fit when trying on clothes?
Which of the following elements must be present on a fertilizer label?
iron
manganese
copper
potassium
Answer:
Potassium, Ive learned about this before. Goodluck!
Explanation:
A Day for Cesar Chavez achive 3000
The day for Cesar Chavez is 31 march every year. This day is celebrated and there is a holiday.
Who was Cesar Chavez?Cesar Chavez was a labor leader and civil rights activist from the United States. Chavez believed in nonviolence as a means of bringing about social change.
Cesar Chavez used nonviolent measures to attract attention to the condition of farmworkers, founding both the National Farm Workers Association and the United Farm Workers.
Therefore, Cesar Chavez Day in the United States is a federal commemorative holiday observed on March 31 to recognize the enduring legacy of the American labor rights hero.
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If anyone cares to leave( he or she, they) may do so now.
Answer:
he or she
Explanation:
the reason is that the question says if anyone and that's a pronoun
Around half of the electricity used in the United States is powered by burning coal. The United States is a developed country with a high level of carbon emissions. Select TWO realistic actions that could help to provide energy for the United States and also help to lower carbon emissions.
A
Create more fossil fuels.
B
Build additional power plants.
C
Reduce the demand for energy.
D
Use renewable sources of energy.
E
Make products that are more efficient.
F
Develop technology to better harvest fossil fuels.
The two options would be to reduce the demand for energy and or use renewable sources of energy. Options C and D are correct.
How to reduce carbon emissionThe burning of fossil fuels such as coal and crude oil-derived fuels generates a large amount of emissions.
In order to cut down on the emission, the demand for energy needs to be lowered by all means. In addition, instead of using fossil fuels, renewable sources of energy can be used.
Greenhouse gases such as carbon dioxide, oxides of sulfur, and water vapor are produced largely as by-products of burning fossil fuels. These gases form a layer in the atmosphere and trap reflected solar radiation.
By doing so, the increase the average annual temperature of the planet (global warming). The warming of the planet has several negative effects on the climate and the ecosystems as a whole.
Renewable sources of energy, on the other hand, have very little to no greenhouse gas emissions.
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In a poll, 1002 adults in a certain country were asked whether they favor or oppose the use of "federal tax dollars to fund medical research using stem cells obtained from human embryos." Based on the poll results, it is estimated that 46% of adults are in favor, with a margin of error of 3 percentage points. Use the given statistic and margin of error to identify the range of values (confidence interval) likely to contain the true value of the population parameter
The range of values likely to contain the true value of the population parameter is from 43% to 49%.
What is Population parameter?This is referred to a statistical measurement for a particular population and is usually fixed.
We were told that the margin of error is 3 percentage points. This therefore means:
(46 ± 3) % = (46-3)% to (46+3)%
Therefore the range of values is 43% to 49%.
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I need help with 2 questions, I don't understand how to do them. Any help would be greatly appreciated!
The length of CE is 3.6 and the radius of the circle is 2
The length of CEStart by calculating the length of AD using:
AD^2 = AC^2 - CD^2
This gives
AD^2 = 10^2 - 6^2
AD^2 = 64
Take the square roots
AD = 8
Represent CE with x.
So:
AE = 10 - x
Calculate ED using:
ED^2 = CD^2 - CE^2
ED^2 = AD^2 - AE^2
So, we have:
AD^2 - AE^2 = CD^2 - CE^2
This gives
8^2 - (10 - x)^2 = 6^2 - x^2
Expand
64 - 100 + 20x - x^2 = 36 - x^2
Add x^2 to both sides
64 - 100 + 20x = 36
Evaluate the like terms
20x = 72
Divide by 20
x = 3.6
Hence, the length of CE is 3.6
The radius of the circleThe equation is given as:
x^2 + y^2 + 6x + 5y = -45/4
Rewrite as:
x^2 + 6x + y^2 + 5y = -45/4
Take the coefficients of x and y
Divide them by 2, square the result and add the result to both sides.
So, we have:
x^2 + 6x + (6/2)^2 + y^2 + 5y + (5/2)^2= -45/4+ (6/2)^2 + (5/2)^2
This gives
x^2 + 6x + (6/2)^2 + y^2 + 5y + (5/2)^2= 4
Express as perfect squares
(x + 3)^2 + (y + 5/2)^2 = 4
The circle equation is represented as:
(x - a)^2 + (y - b)^2 = r^2
Where r represents the radius
By comparison, we have:
r^2 = 4
This gives
r = 2
Hence, the radius of the circle is 2
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what is two plus two
Answer: 4
Explanation:
Which BEST describes climate change and least developed countries?
A
Least developed countries are barely affected by climate change because they are surrounded by developed countries.
B
Least developed countries are not affected by climate change because they are not in areas where emissions are high.
C
Least developed countries are the most responsible for climate change because they are the lowest producers of energy.
D
Least developed countries are the most vulnerable to climate change while contributing the least amount of greenhouse gases.
helpppppppppppppp plsssssssssss
Answer: The Great Ziggurat was built as a place of worship, dedicated to the moon god Nanna in the Sumerian city of Ur in ancient Mesopotamia. Today, after more than 4,000 years, the ziggurat is still well preserved in large parts as the only major remainder of Ur in present-day southern Iraq.
Explanation: It is in the answer
The following question has two parts. First, answer Part A. Then, answer Part B.
Part A:
Based on the charts in the passage, how has the production of coal and solar energy in California changed between 2005 and 2015?
A
The production of both coal and solar increased.
B
The production of both coal and solar decreased.
C
The production of coal increased, while the production of solar decreased.
D
The production of coal decreased, while the production of solar increased.
Part B:
Which statement BEST explains why the change in coal and solar production most likely occurred?
A
Solar energy technology has improved and increased in capacity, but coal has decreased in capacity because it is a limited resource.
B
Solar energy technology has improved and increased in capacity, while coal has also increased in capacity because new coal forms all the time.
C
Solar energy technology has become too complex and decreased in capacity, but coal has increased in capacity because new coal forms all the time.
D
Solar energy technology has become too complex and decreased in capacity, while coal has also decreased in capacity because it is a limited resource.
Based on the chart, the correct options are:
The production of coal decreased, while the production of solar increased; option D.Solar energy technology has improved and increased in capacity, but coal has decreased in capacity because it is a limited resource; option AWhat is solar energy?Solar energy is a type of renewable energy from the sun.
Solar energy is gradually being used to replace non-renewable energy sources such as coal.
Based on the chart:
The production of coal decreased, while the production of solar increased; option D.
Solar energy technology has improved and increased in capacity, but coal has decreased in capacity because it is a limited resource.
In conclusion, solar energy production is increasing.
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According to the text, which THREE phenomena are a direct result of, or are made worse by, human activities?
A
reduction in seasonal river flooding
B
creation of barrier islands
C
fluctuation of sea levels
D
loss of river sediments
E
deposition of delta sediments
F
filling in of wetlands
THREE phenomena which are a direct result of, or are made worse by, human activities accoding to the text are:
loss of river sedimentscreation of barrier islandsreduction in seasonal river floodingWhat are human activities?Human activities simply refers to those activities or various actions by man for recreation, living, or necessity done by people. Some of those activities results in situations which affects man too
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Which statement about energy usage is supported by the passage?
A
Developed and developing countries use less energy and create less emissions than least developed countries.
B
Developed and developing countries use more energy and create more emissions than least developed countries.
C
All countries, regardless of development, use different amounts of energy but create the same amount of emissions.
D
All countries, regardless of development, use the same amount of energy but create different amounts of emissions.
Supporting detail is used to show that an original claim is either true or false and it backs the claim up or refutes it,.
What is a Supporting Detail?This refers to the use of evidence to validate a claim through the use of factual or statistical details.
Hence, we can see that your question is incomplete as the passage was not included, hence a general overview was given.
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[4] They can add it to livestock feed as a protein supplement, and people can make their own Greek-style yogurt at home by straining regular yogurt.
A. NO CHANGE
B. supplement and convert it into gas to use as fuel in electricity production
C. supplement, while sweet whey is more desirable as a food additive for humans.
D. supplement, which provides an important element of their diet.
Answer:
C. supplement, while sweet whey is more desirable as a food additive for humans.