Back to 8.1 A Confidence Interval When the Population Standard Deviation Is Known or Large Sample Size

8.1 Exercise 8

Avg difficulty 2.5

The price of a chair is a large range of cost. The average cost of 25 chairs in a store is $100. The sample standard deviation is $50. Construct a 92% confidence interval for the population mean of the cost of chairs.

OpenStax Introductory Business Statistics 2e, 8.1 A Confidence Interval When the Population Standard Deviation Is Known or Large Sample Size, exercise 8

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