Suppose That the Amount of Time Teenagers Spend on the Internet

question 9

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 99% confidence interval estimate of the population mean.

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Definitions:

Healthy

describes a state of complete physical, mental, and social well-being, not merely the absence of illness or infirmity.

School-age Children

A developmental stage referring to children who are attending primary or elementary school, typically ranging from 5 to 12 years old.

Two Parents

Referring to a family structure that includes two guardians or caregivers, typically a mother and a father.

Low Income

Refers to individuals or families that earn significantly less than the average income for their society or geographic area, often leading to limited access to basic needs and services.