The mean and the standard deviation of the sample of 65 customer satisfaction ra

Question

The mean and the standard deviation of the sample of 65 customer satisfaction ratings in Table 1.7 are 42.95 and 2.6424, respectively. Calculate a t-based 95 percent confidence interval for , the mean of all possible customer satisfaction ratings for the XYZ-Box video game system. Are we 95 percent confident that is at least 42, the minimal rating given by a very satisfied customer? The mean and the standard deviation of the sample of 65 customer satisfaction ratings in Table 1.7 are 42.95 and 2.6424, respectively. Calculate a t-based 95 percent confidence interval for , the mean of all possible customer satisfaction ratings for the XYZ-Box video game system. Are we 95 percent confident that is at least 42, the minimal rating given by a very satisfied customer?

Explanation / Answer

The mean and the standard deviation of the sample of 65 customer satisfaction ra

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