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The marketing department has designed two different boxes for its product. It wa

ID: 3228790 • Letter: T

Question

The marketing department has designed two different boxes for its product. It wants to determine which box will produce larger amount of sales. Each box will be test marketed in three different stores for a period of a month. Below you are given the information on sales. What conclusion do you draw at alpha = 0.05? The mean of box 3 is larger than the others, therefore the null hypothesis is accepted The mean of box 3 is larger than the others, therefore the null hypothesis is rejected. Even though the mean of box 3 is larger than the others, the null hypothesis is not rejected. Since all means are the same the null hypothesis is rejected. None of above is true.

Explanation / Answer

The statistical software output for this problem is:

Contingency table results:
Rows: var4
Columns: None


Chi-Square test:

Here,

p - value > 0.05, we do not reject Ho. Hence,

Option C is correct.

Store 1 Store 2 Store 3 Total Box 1 210 230 190 630 Box 2 195 170 200 565 Box 3 250 275 290 815 Total 655 675 680 2010