According to a research study, American teenagers watched 14.8 hours of television per week last year, on average. A random sample of 11 American teenagers was surveyed and the mean amount of time per week each teenager watched television was 15.6. This data has a sample standard deviation of 2.5. (Assume that the scores are normally distributed.) Researchers conduct a one-mean hypothesis test at the 5% significance level, to test if the mean amount of time American teenagers watch television per week is greater than the mean amount of time last year. (a) Which answer choice shows the correct null and alternative hypotheses for this test? Select the correct answer below: O O O O Ho : μ-15.6; Ha : μ < 15.6, which is a left-tailed test. Ho : μ = 15.6; Ha : μ 〉 15.6, which is a right-tailed test. Ho : μ Ho : μ-14.8: Ha : μ 14.8, which is a right-tailed test. -148: Ha : μ 14.8, which is a left-tailed test.
According to a research study, American teenagers watched 14.8 hours of television per week last year, on average. A random sample of 11 American teenagers was surveyed and the mean amount of time per week each teenager watched television was 15.6. This data has a sample standard deviation of 2.5. (Assume that the scores are normally distributed.) Researchers conduct a one-mean hypothesis test at the 5% significance level, to test if the mean amount of time American teenagers watch television per week is greater than the mean amount of time last year. (a) Which answer choice shows the correct null and alternative hypotheses for this test? Select the correct answer below: O O O O Ho : μ-15.6; Ha : μ < 15.6, which is a left-tailed test. Ho : μ = 15.6; Ha : μ 〉 15.6, which is a right-tailed test. Ho : μ Ho : μ-14.8: Ha : μ 14.8, which is a right-tailed test. -148: Ha : μ 14.8, which is a left-tailed test.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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