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A philanthropic organisation sent free mailing labels and greeting cards to a random sample of 100,000 potential donors on their mailing list and received 5292

A philanthropic organisation sent free mailing labels and greeting cards to a random sample of 100,000 potential donors on their mailing list and received 5292 donations.

(a) Give a 99% confidence interval for the true proportion of those from their entire mailing list who may donate.

(b) A staff member thinks that the true rate is 5.7%. Given the confidence interval youfound, do you find that rateplausible?

(a) What is the 99% confidenceinterval?

The 99% confidence interval is from ___% to ____

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