The administration at western is curious in determining the

Reference no: EM13645036

The administration at Western is curious in determining the average GPA of its students. Previous studies have shown that the population is normally distributed with a standard deviation of 1.2. With this in mind, how many GPA samples must be taken to ensure that the estimate is within 5% of the true average with a 90% confidence interval?

Reference no: EM13645036

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