Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

It is commonly said that the average college student spends 10 hours per week on the Internet. You believe that the 10-hour figure is

It is commonly said that the average college student spends 10 hours per week on the Internet. You believe that the 10-hour figure is simply wrong, and decide to collect your own sample for a hypothesis test. You randomly sample 64 students from your college and find that on average they spent 13.5 hours a week online, with a sample variance of 4 hours. The probability of Type I Error is 5%. a) What is the assumption about the distribution of the Internet hours random variable and what does the assumption imply about the distribution of the sample mean? b) What is the null and alternative hypotheses? c) Write down test statistic and explain how it is distributed when the null hypothesis is true and how it behaves when the null hypothesis is false. d) Probability of Type I Error to use? e) Show in a graph the test rejection region you would use. Be sure to label the distribution of the test statistic when the null hypothesis is true, and indicate explicitly where the probability of Type I Error is depicted in your graph.

Step by Step Solution

3.29 Rating (170 Votes )

There are 3 Steps involved in it

Step: 1

The detailed ... blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Essentials Of Business Statistics Communicating With Numbers

Authors: Sanjiv Jaggia, Alison Kelly

1st Edition

78020549, 978-0078020544

More Books

Students also viewed these Accounting questions

Question

What is a risk perception and why is it important?

Answered: 1 week ago