Suppose That the Amount of Time Teenagers Spend on the Internet

question 13

Short Answer

Suppose that the amount of time teenagers spend on the Internet is normally distributed, with a standard deviation of 1.5 hours. A sample of 100 teenagers is selected at random, and the sample mean is computed as 6.5 hours.
Determine the 95% confidence interval estimate of the population mean, changing the sample mean to 8.5 hours.

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Definitions:

Modified Accrual Accounting

An accounting method that combines elements of both accrual and cash basis accounting, recognizing revenues when they are available and measurable, and expenses when incurred.

Realizable

Refers to assets that can be easily converted into cash or are expected to be sold without significant delay or loss in value.

Modified Accrual Accounting

An accounting method that recognizes revenues when they become available and measurable and expenses when they are incurred, used often by government entities.