Suppose that you want to build a confidence interval to estimate the mean number of hours that people spend exercising each week. You want a 95% level of confidence. Assume that the population standard deviation is 2.5 hours. What is the critical z value? Give your answer to two decimal places, or three decimal places if three decimal places are needed.

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Kahunatheking1439idn Kahunatheking1439idn

02-07-2024
Mathematics

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Suppose that you want to build a confidence interval to estimate the mean number of hours that people spend exercising each week. You want a 95% level of confidence. Assume that the population standard deviation is 2.5 hours. What is the critical z value? Give your answer to two decimal places, or three decimal places if three decimal places are needed.

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