Question: 2. You draw a random sample of 400 observations from a population of unknown and unknown 2. Your sample mean, x, is equal to

2. You draw a random sample of 400 observations from a population of unknown and unknown 2. Your sample mean, x, is equal to 100. Your sample variance, s, is equal to 1,600. (a) Find a 90% confidence interval for. (b) Find a 95% confidence interval for. (c) Find a 99% confidence interval for.

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