In Order to Determine How Many Hours Per Week Freshmen

question 44

Short Answer

In order to determine how many hours per week freshmen college students watch television, a random sample of 256 students was selected. It was determined that the students in the sample spent an average of 14 hours. The standard deviation is 3.2 hours per week for all freshman college students.
a.Provide a 95% confidence interval estimate for the average number of hours that all college freshmen spend watching TV per week.
b.Suppose the sample mean came from a sample of 25 students. Provide a 95% confidence interval estimate for the average number of hours that all college freshmen spend watching TV per week. Assume that the hours are normally distributed.

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Definitions:

Temporal Discounting

The tendency to value immediate rewards more highly than future rewards, leading to a preference for sooner over later outcomes.

Avoidance

A psychological mechanism or behavior aimed at steering clear from a specific stimulus or situation due to its perceived negative consequences.

Status Quo Bias

A cognitive bias that favors existing conditions or states of affairs, leading individuals to resist change.

Omission Bias

The tendency to judge harmful actions as worse, or less moral, than equally harmful omissions (inactions).