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a dentist wants to find out the average time taken by her hygienist for x rays...

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Question

Basic Math

a dentist wants to find out the average time taken by herhygienist for x rays and clean teeth for patients. she recorded thetime to serve 24 randomly selected patients . construct a 99%confidence interval for the average time taken

Time
36.80
39.80
38.60
38.30
35.80
32.60
38.70
34.50
37.00
32.00
40.90
33.80
37.10
31.00
35.10
38.20
36.60
38.80
39.60
39.70
35.10
38.20
32.70
40.50

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