1. Measurements are made on a random sample of 23 components drawn from a population size of 100. Assume that the population is normal and the mean measurements of the components in the sample are 67.45mm with standard deviation of 2.93 mm. a. Determine a 95% confidence interval for an estimate of the mean of the population. b. Determine a 99% confidence interval for an estimate of the mean of the population.

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