The formula used to calculate a confidence interval for the mean of a normal population when n is small is the following. X + (t critical value) What is the appropriate t critical value for each of the following confidence levels and sample sizes? (Round your answers to two decimal places.) USE SALT (a) 98% confidence, n = 17 (b) 90% confidence, n = 11 S (c) 99% confidence, n = 24

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A: Assume the random variable x is normally distributed with mean = 90 and standard deviation a = 4.…

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A:

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Q: (a) Rank Gibson, Maddux, and Martinez in impressiveness relative to their respective Leagues.

A: for   1968  :  mean =μG= 2.82 , standard deviation σG= 0.68 , xG= 1.12for   1994  :  mean =μM=…

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A: Sample size n =616 Favorable cases x =438 Sample proportion p^=x/n  =438/616 =0.711038961 =0.7110