In which 50 consumers taste-tested a new snack food. The data are saved in the SNACK file.
a. Test H0: p =.5 against Ha: p >.5, where p is the proportion of customers who do not like the snack food. Use α =.10.
b. Report the observed significance level of your test.
A random sample of 50 consumers taste-tested a new snack food. Their responses were coded (0: do not like; 1: like; 2: indifferent), recorded and saved in the SNACK file as follows:
1 | 0 | 0 | 1 | 2 | 0 | 1 | 1 | 0 | 0 |
0 | 1 | 0 | 2 | 0 | 2 | 2 | 0 | 0 | 1 |
1 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 |
0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 |
0 | 2 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 |
a. Use an 80% confidence interval to estimate the proportion of consumers who like the snack food.
b. Provide a statistical interpretation for the confidence interval you constructed in part a.
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