Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

A computer manufacturing company claims that only 7.5% of their computers are returned. Kelly thinks that the company is misrepresenting the true proportion of computers

A computer manufacturing company claims that only 7.5% of their computers are returned. Kelly thinks that the company is misrepresenting the true proportion of computers that are returned, and that the true proportion is higher than they claim. She wants to test this using = 0.1. Kelly takes a sample of 205 computers and observes that 23 are returned.Assume a normal sampling distribution. (a) What are the null and alternative hypotheses? H0: HA: (b) What is the test statistic? (Round your answer to 2 decimal places, if needed.) (c) Using the statistical table, what is the p-value? (Round your answer to 4 decimal places, if needed.) (d) Based on the p-value, Kelly should reject or fail to reject the null hypothesis ? (e) This data provides or does not provide sufficient evidence to conclude that the true proportion of computers is higher than claimed ?

Step by Step Solution

There are 3 Steps involved in it

Step: 1

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_2

Step: 3

blur-text-image_3

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

Classical Mechanics

Authors: R Douglas Gregory

1st Edition

0511159242, 9780511159244

More Books

Students also viewed these Mathematics questions

Question

1. How do sex hormones affect neurons?

Answered: 1 week ago