Each person in a random sample of 228 male teenagers and a random sample of 303 female teenagers was asked how many hours he or she spent online in a typical week. The sample mean and standard deviation were 15.3 hours and 11.3 hours for males and 14.1and 11.8 for females. (Use a statistical computer package to calculate the P-value. Use ?males − ?females. Round your test statistic to two decimal places, your df down to the nearest whole number, and your P-value to three decimal places.) t = df = P = Is there enough evidence to show that mean number of hours spent online in a typical week is greater for male teenagers than for female teenagers? Use a 0.05 significance level. Yes No
Each person in a random sample of 228 male teenagers and a random sample of 303 female teenagers was asked how many hours he or she spent online in a typical week. The sample mean and standard deviation were 15.3 hours and 11.3 hours for males and 14.1and 11.8 for females. (Use a statistical computer package to calculate the P-value. Use ?males − ?females. Round your test statistic to two decimal places, your df down to the nearest whole number, and your P-value to three decimal places.) t = df = P = Is there enough evidence to show that mean number of hours spent online in a typical week is greater for male teenagers than for female teenagers? Use a 0.05 significance level. Yes No
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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Each person in a random sample of 228 male teenagers and a random sample of 303 female teenagers was asked how many hours he or she spent online in a typical week. The sample mean and standard deviation were 15.3 hours and 11.3 hours for males and 14.1and 11.8 for females. (Use a statistical computer package to calculate the P-value. Use ?males − ?females. Round your test statistic to two decimal places, your df down to the nearest whole number, and your P-value to three decimal places.)
| t = | |
| df = | |
| P = |
Is there enough evidence to show that mean number of hours spent online in a typical week is greater for male teenagers than for female teenagers? Use a 0.05 significance level.
Yes
No
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