Point estimate for the population mean

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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?

Reference no: EM1318375

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