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