Suppose That the Study in Problem #2 Was Performed with a Random

question 18

Essay

Suppose that the study in problem #2 was performed with a random sample ofn =121patient contacts where a plain ring was worn, and 40 of these patient contactsresulted in bacterial transmission.
a) Describe the shape, center, and spread of the sampling distribution of $\hat{p}$ if the nullhypothesis Hpo : = 0.25 were true.
b) Is there convincing evidence that the null hypothesis is not true, or is $\hat{p}$ consistentwith what you would expect to see if the null hypothesis were true?
Carry out ahypothesis test to answer this question.

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Definitions:

C2B

Consumer-to-Business, a business model where consumers create value and businesses consume that value; for example, customer reviews or selling products online to companies.

Internet

A global network connecting millions of computers to facilitate data exchange.

Breadcrumb Trail

A navigation aid that shows users the path they have taken to get to a web page or where the page is located within the website; it usually appears at the top of a page.

Navigation

The process or activity of accurately ascertaining one's position and planning and following a route.