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Each member of a random sample of 16 business economists was asked to predict the rate...

Each member of a random sample of 16 business economists was asked to predict the rate of inflation for the coming year. Assume that the predictions for the whole population of business economists follow a normal distribution with standard deviation 2.1%

a. The probability is 0.10 that the sample standard deviation is bigger than what​ number?

b. The probability is 0.01 that the sample standard deviation is less than what​ number?

c. Find any pair of numbers such that the probability that the sample standard deviation that lies between these numbers is 0.975.

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milcah answered 3 months ago
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