Question

A sample of World Campus students were surveyed. They were asked which of the following they prefer to drink: beer, water, or neither. And, their biological sex was recorded. These data are presented in the table below.

	Biological Sex
	Female	Male
Beer	61	137
Wine	144	44
Neither	76	62

1. In this sample, are biological sex and drink preference independent or related? Explain why.  
2. Compute the relative risk comparing the proportion of males who prefer beer to the proportion of females who prefer beer. Show all work.
3. Interpret the relative risk that you computed in part b.

Answer 1

A) We will use chi-square test of independence---

------------WE WILL USE MINITAB TO GET HE RESULT OF CHI SQUARE TEST------------

STEPS----

ENTER THE DATA------STAT------TABLE------CHI SQUARE TEST OF ASSOCIATION---------

THE OUTPUT OF MINITAB IS-----

HERE

NULL HYPOTHESIS:biological sex and drink preference are independent

ALTERNATIVE HYPOTHESIS:biological sex and drink preference are not independent.

Since, p-value=0 then,we reject the null hypothesis.

Thus biological sex and drink preference are not independent.