### Point estimate for the population mean

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##### Reference no: EM1318375

A podiatrist recorded the recovery time, in days, for 38 patients. He was trying out a new procedure and hoped the result would be less recovery time on average. The mean recovery using the previous procedure was 6.5 days. The recorded times were:

 8 7 8 6 9 4 5 3 7 8 10 7 7 6 4 10 3 6 8 2 5 5 4 5 3 8 7 4 6 3 7 12 4 3 6 6 9 4

Note that Σx = 229 and Σx2 = 1581.

(a) What is a point estimate for the population mean µ?

(b) Find a 90% confidence interval for µ.

(c) What is the maximum error of estimate for µ?

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