In: Statistics and Probability
A researcher wants to know if the proportion of people that prefer whiskey to wine person instruction is the same at three local bars. A sample of people at each bar was asked about their preference. The data collected is below.
Anglelos |
Romans |
Guys |
|
WHiskey |
197 |
212 |
133 |
Wine |
23 |
33 |
10 |
Perform the test of whether the proportions of preference are the same for each bar. Your answer must include each of the following parts:
a. What hypotheses are you using?
b. What is your chi-square statistic?
c. What is your p-value?
d. At alpha=0.05, what is your conclusion?