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Suppose a researcher is interested in the average running time of a program. He runs the...

Suppose a researcher is interested in the average running time of a program. He runs the program n =32 times. Hecomputesthe average running time of this sample tobe ¯ x =64.12seconds with a sample standard deviation of s =12.00 seconds. (a) Give a 95% confidence interval for the average running time of the program. (b) Give a 99% confidence interval for the average running time of the program.

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