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...


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

Extracted text: 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?

Jun 11, 2022
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