It has been found that the average time Internet users spend online per week is 18.3 hours with a population variance of 32.49. A random sample of 48 teenagers indicated that their mean amount of Internet time per week was 20.9 hours. At 10% level of significance, can it be concluded that the mean time differs from 18.3 hours per week? Find the following: 1. Type of test 2. Decision

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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It has been found that the average time Internet users spend online per week is 18.3 hours with a population variance of 32.49. A random sample of 48 teenagers indicated that their mean amount of Internet time per week was 20.9 hours. At 10% level of significance, can it be concluded that the mean time differs from 18.3 hours per week?

Find the following:

1. Type of test

2. Decision

= 18.3; μ> 18.3
Reject Ho
0.28%
= 18.3; 18.3
t-test
0.16%
one-tailed test
<18.3; μ> 18.3
z-test
0.04%
Transcribed Image Text:= 18.3; μ> 18.3 Reject Ho 0.28% = 18.3; 18.3 t-test 0.16% one-tailed test <18.3; μ> 18.3 z-test 0.04%
O two-tailed test
O Do not reject Ho
O 10%
Transcribed Image Text:O two-tailed test O Do not reject Ho O 10%
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