Suppose That the Amount of Time Teenagers Spend on the Internet

question 29

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 size to 300.

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Definitions:

Interest Rate

The percentage of a loan charged as interest to the borrower, typically expressed as an annual percentage of the loan outstanding.

Expected Rate

The anticipated return or yield on an investment, often based on historical data or forecasts of future trends.

Total Investment

The overall amount of money invested in assets, projects, or securities by an individual or entity.

Interest Rate

The percentage of the principal charged by a lender to a borrower for the use of assets.