2. Suppose that California Community Bank is testing the hypothesis that the proportion of deposit slips...

2. Suppose that California Community Bank is testing the hypothesis that the proportion of deposit slips filled out incorrectly is 2%. A random sample of 1000 customers found that 28 completed the deposit slips incorrectly. a) Identify the null and alternate hypotheses. b) Determine if strong evidence exists to confirm that 2% of the deposit slips are filled out incorrectly? c) If a benchmark of 0.05 was used for the p-value, would the null hypothesis be rejected, or do we fail to reject the null?

Expert Solution

TOPIC:Z-test for the population proportion.

orchestra answered 2 years ago

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