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In the 2018 GSS, a random sample of 1419 adults were asked how many hours per week they usually spend on email. The mean number of hours spent on email for the sample was 7.15, with a standard deviation of 11.75. Use these data to calculate a 95% confidence interval for the mean number of hours spent on email in the population, and answer the following questions based on those calculations. a. What is the best estimate for the standard error of the sampling distribution? b. What is the value of Z for this confidence interval? c. What is the margin of error for this confidence interval?

In the 2018 GSS, a random sample of 1419 adults were asked how many hours per week they usually spend on email. The mean number of hours spent on email for the sample was 7.15, with a standard deviation of 11.75. Use these data to calculate a 95% confidence interval for the mean number of hours spent on email in the population, and answer the following questions based on those calculations. a. What is the best estimate for the standard error of the sampling distribution? b. What is the value of Z for this confidence interval? c. What is the margin of error for this confidence interval?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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a. What is the best estimate for the standard error of the sampling distribution? b. What is the value of Z for this confidence interval? c. What is the margin of error for this confidence interval?
In the 2018 GSS, a random sample of 1419 adults were asked how many hours per week they usually spend on email. The mean number of hours spent on email for the sample was 7.15, with a standard deviation of 11.75. Use these data to calculate a 95% confidence interval for the mean number of hours spent on email in the population, and answer the following questions based on those calculations. a. What is the best estimate for the standard error of the sampling distribution? b. What is the value of Z for this confidence interval? C. What is the margin of error for this confidence interval?
Transcribed Image Text:In the 2018 GSS, a random sample of 1419 adults were asked how many hours per week they usually spend on email. The mean number of hours spent on email for the sample was 7.15, with a standard deviation of 11.75. Use these data to calculate a 95% confidence interval for the mean number of hours spent on email in the population, and answer the following questions based on those calculations. a. What is the best estimate for the standard error of the sampling distribution? b. What is the value of Z for this confidence interval? C. What is the margin of error for this confidence interval?
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