Reconsider the data from the previous two exercises. Now investigate whether there is any association between coff ee drinking and the letter chosen to complete the four letter word.

Data from previous exercise

College students were asked to indicate their sex, whether or not they drink coffee, and what letter they would use to complete the four-letter word beginning with F A I __ .

Results are given in the following data table (* indicates a missing value):

a. Produce a 2 × 2 table of counts for investigating whether the data suggest any association between sex of respondent and coffee drinking.
b. Calculate and compare the proportions of coffee drinkers between male and female students.
c. Produce a segmented bar graph to display the data from part (a).
d. Summarize what you conclude about whether the data suggest any association between sex of respondent and coffee drinking.

ID Sex Coffee? Letter? Female Yes Female Yes 2 Male No 4 Female No Female Yes Male Yes Male No Male Yes Female No Female No 10 Female No 11 Female Yes 12 Male No 13 14 Male Yes Female No 15 Male No 16 Male Yes 17 Female No 18 Female No 19 Male Yes 20 Male No R. 21 Female No 22 Female Yes R. 23 24 Female No R. Female No 25 Female Yes 26