A paint manufacturer wished to compare the drying times of two different types of paint. The drying times, in hours, were recorded. Independent simple random samples of 11 cans of type A, the sample mean was 75.7 hours and the sample standard deviation was 4.5 hours. In random sample of 9 cans of type B, the sample mean was 64.3 hours and the sample standard deviation was 5.1 hours. Construct a 98% confidence interval for the difference between the mean drying time for paint of type A and the mean drying time for paint of type B.  A) (5.79, 17.01) B) (5.85,16.95) C) (5.92, 16.88) D) (6.08, 16.72)

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