Question
In: Statistics and Probability
You wish to test whether people who buy crackers at the supermarket also tend to buy...
You wish to test whether people who buy crackers at the supermarket also tend to buy cheese. You go to your neighbourhood grocery store and ask a random sample of 100 people about their purchase. Of these, 65 bought crackers, 52 bought cheese, and 38 bought both.
1-How many people bought neither crackers nor cheese?
2-Given that 65 people bought crackers and 52 bought cheese, what is the fewest number of people that could have bought both crackers and cheese?
3-To test your hypothesis with a Fisher exact test, do you need to run a one-tailed or two-tailed test?
4-Run a Fisher exact test on the data provided to test the null hypothesis that people who buy crackers do not also tend to buy cheese. What is the p-value from the Fisher exact test (to 2 decimal places)?
Solutions
orchestra answered 1 year agoRelated Solutions
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