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5. The actual time it takes to cook a ten-pound turkey is a...
all answers please 3. The teachers union is concerned about the amount of time teachers spend...
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3. The teachers union is concerned about the amount of time teachers spend each week doing schoolwork at home. A simple random sample of 56 teachers had a mean of 8.0 hours per week working at home after school. Assume that the population standard deviation is 1.5 hours per week. a) Construct a 95% confidence interval estimate for the mean number of hours per week a teacher spends working at home. b) Does the confidence interval support...
all answers please!! 1. A company that produces brendis concerned about the distribution of the amount of sodiu...
all answers please!!
1. A company that produces brendis concerned about the distribution of the amount of sodium in its bread. The company takes a simple random sample of 100 slices of bread and compute the sample mean to be 103 milligrams of sodium per slice. Assume that the population standard deviation is 10 milligrams a) Construct a 95% confidence interval estimate for the mean sedium level. b) Construct a 99% confidence intervalestime for the mean sodium level. 2. Fill...
6. A recent Gallop poll showed Trump's approval rating 40% with a margin or error of...
6. A recent Gallop poll showed Trump's approval rating 40% with a margin or error of 3%. a) Find the confidence interval. c) Does the confidence interval support that more than 50% of Americans approve of Trump? Why or why not? 7. A recent Gallop poll showed that 672 of 1019 adults nationwide think that marijuana should be legalized. a) Find the margin of error that corresponds to a 95% confidence interval. c) Find the 95% confidence interval estimate of...
8. In a recent survey of 1002 people, 701 said that they voted in a recent presidential election. Voting records show that 61% of eligible voters actually did vote.
Please answer A), B) and C).A)Find the 95% confidence interval estimate of the proportion of people who say that they voted.B) Are the survey results consistent with the actual voter turnout of 61%? Why or why not?C) How would the confidence interval change if we increased the confidence level to 99%? Findthe 99% confidence interval estimate to support your answer.
a simple random sample of 511 adults were asked if they agreed medical A simple random...
a simple random sample of 511 adults were asked if they agreed
medical
A simple random sample of 511 adults were asked if they agreed medical marijuana should be legally available. Based on the 511 responses, 64% of respondents voted yes. a) Identify the population b) Identify the sample c) is the sample representative of the population? If no, what sampling method would best represent the population? d) 64% of respondents voted yes, find the probability of randomly selecting 10...
A recent study of 28 city residents showed that the mean of the time they had...
A recent study of 28 city residents showed that the mean of the time they had lived at their present address was 9.3 years and the standard deviation was 2 years. Assuming a normal population, find the 90% confidence interval of the true mean. Interpret the interval estimate. A US Travel Data Center survey conducted for Better Homes and Gardens of 1500 adults found that 39% said that they would take more vacations this year than last year. Find the...
Take this test as you would take a test in class. 1. In a survey of...
Take this test as you would take a test in class. 1. In a survey of 2096 U.S. adults, 1740 think football teams of all levels should require players who suffer a head injury to take a set amount of time off from playing to recover. (Adapted from The Harris Poll) (a) Find the point estimate for the population proportion. (b) Construct a 95% confidence interval for the population proportion. Interpret the results. (c) Does it seem possible that the...
Please lay the answers out in an easy to understand format :) 1. In a recent...
Please lay the answers out in an easy to understand format
:)
1. In a recent poll of an upcoming election, Candidate A has 48% of the votes and Candidate B has 51% of the votes with a Margin of Error of +/- 4%. Construct a confidence interval for each Candidate. a. Candidate A General Formula: Specific Formula: Numerical Value: b. Candidate B General Formula: Specific Formula: Numerical Value c. Can we safely say Candidate B will win the election?...
7) In a recent Pew Research Center survey (Oct 17, 2019) of 3500 U.S. adults, 1890...
7) In a recent Pew Research Center survey (Oct 17, 2019) of 3500 U.S. adults, 1890 adults said congress should continue with impeachment proceedings. 18 points a) Show work for finding the point estimate, p b) Find the margin of error, E, using a 95% confidence level and round to 3 decimal places. c) Find a 95% confidence interval for the population proportion from this survey, show all values used and round to 3 decimals. d) Interpret your answer. e)...
all answers please
3. The teachers union is concerned about the amount of time teachers spend each week doing schoolwork at home. A simple random sample of 56 teachers had a mean of 8.0 hours per week working at home after school. Assume that the population standard deviation is 1.5 hours per week. a) Construct a 95% confidence interval estimate for the mean number of hours per week a teacher spends working at home. b) Does the confidence interval support...
all answers please!!
1. A company that produces brendis concerned about the distribution of the amount of sodium in its bread. The company takes a simple random sample of 100 slices of bread and compute the sample mean to be 103 milligrams of sodium per slice. Assume that the population standard deviation is 10 milligrams a) Construct a 95% confidence interval estimate for the mean sedium level. b) Construct a 99% confidence intervalestime for the mean sodium level. 2. Fill...
6. A recent Gallop poll showed Trump's approval rating 40% with a margin or error of 3%. a) Find the confidence interval. c) Does the confidence interval support that more than 50% of Americans approve of Trump? Why or why not? 7. A recent Gallop poll showed that 672 of 1019 adults nationwide think that marijuana should be legalized. a) Find the margin of error that corresponds to a 95% confidence interval. c) Find the 95% confidence interval estimate of...
a simple random sample of 511 adults were asked if they agreed
medical
A simple random sample of 511 adults were asked if they agreed medical marijuana should be legally available. Based on the 511 responses, 64% of respondents voted yes. a) Identify the population b) Identify the sample c) is the sample representative of the population? If no, what sampling method would best represent the population? d) 64% of respondents voted yes, find the probability of randomly selecting 10...
Take this test as you would take a test in class. 1. In a survey of 2096 U.S. adults, 1740 think football teams of all levels should require players who suffer a head injury to take a set amount of time off from playing to recover. (Adapted from The Harris Poll) (a) Find the point estimate for the population proportion. (b) Construct a 95% confidence interval for the population proportion. Interpret the results. (c) Does it seem possible that the...
Please lay the answers out in an easy to understand format
:)
1. In a recent poll of an upcoming election, Candidate A has 48% of the votes and Candidate B has 51% of the votes with a Margin of Error of +/- 4%. Construct a confidence interval for each Candidate. a. Candidate A General Formula: Specific Formula: Numerical Value: b. Candidate B General Formula: Specific Formula: Numerical Value c. Can we safely say Candidate B will win the election?...
7) In a recent Pew Research Center survey (Oct 17, 2019) of 3500 U.S. adults, 1890 adults said congress should continue with impeachment proceedings. 18 points a) Show work for finding the point estimate, p b) Find the margin of error, E, using a 95% confidence level and round to 3 decimal places. c) Find a 95% confidence interval for the population proportion from this survey, show all values used and round to 3 decimals. d) Interpret your answer. e)...
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