Question
3. A major food manufacturer is concerned that the sales of its skinny French fries have been decreasing. As a part of a feasibility study,
3. A major food manufacturer is concerned that the sales of its skinny French fries have been decreasing. As a part of a feasibility study, the company conducts research into the types of fries sold across the country to determine if the type of fries sold is independent of the area of the country. The results of the study are below. Conduct a test for independence at the 1% level.
Type of Fries | North | South | Central | West |
Skinny Fries | 70 | 50 | 20 | 25 |
Curly Fries | 100 | 60 | 15 | 30 |
Steak Fries | 20 | 40 | 10 | 10 |
- State the null and alternative hypotheses
- What is the test statistic? Round the answer to two decimal places.
- What is the p-value? Round your answer to four decimal places
- Indicate the correct decision ("reject" or "do not reject" the null hypothesis) and write the appropriate conclusion (in a statement referencing details of the problem).
My question is how do I figure this one out because I am so lost is there an explanation I can get. I am using a ti-84 calculator to solve this. So for this, i am using the t-test and t interval right? and i suppose the problem is figuring out what variables to put in so that is probably why I am so stuck with all of these questions. Any thoughts?
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