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The mean and the standard deviation of the sample of 100 bank customer waiting times are x=5.16 and s=2.335. (1) Calculate a t-based 95 percent
The mean and the standard deviation of the sample of 100 bank customer waiting times are x=5.16 and s=2.335. (1) Calculate a t-based 95 percent confidence interval for , the mean of all possible bank customer waiting times using the new system. (Choose the nearest degree of freedom for the given sample size. Round your answers to 3 decimal places.) (2) Are we 95 percent confident that is less than 6 minutes
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