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Question regarding the margin of error

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Reference no: EM131115571

A cell phone manufacturer would like to know what proportion ppof its customers is dissatisfied with the service received from their local distributor. The customer relations department will survey a random sample of customers and compute a 95% confidence interval for the proportion that are dissatisfied. From the past studies, they believe that this proportion will be about 0.1.

Fill in the blanks:

1. If the margin of error for a 95% confidence interval is 0.015, the sample size is . (Give your answer as a whole number.)

2. Suppose that 15% of the sample say that they are dissatisfied, the margin of error for the 95% confidence interval is . (Give your answer to three decimal places.)

Reference no: EM131115571

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