Develop a 95 confidence interval on the population

Reference no: EM13619793

Lori M. is trying to determine the proportion of expense reports that contain questionable charges. She takes a random sample of 300 records and finds that 33 of the reports have one or more questionable charges.

Develop a 95% confidence interval on the population proportion based on the sample results.

Determine how large a sample she would need to take in order to be 99% certain that the maximum error in the predicted population proportion was 1%.

Reference no: EM13619793

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