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28 March, 20:10

A sample of 75 information systems managers had an average hourly income of $40.75 with a standard deviation of $7.00. if we want to determine a 95% confidence interval for the average hourly income of the population, the value of t is + g

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  1. 28 March, 20:44
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    The correct answer to this question is 1.96. To compute the value t-statistics you need to look for the population mean and subtract it to sample mean (x-bar - μ) and then divide s by the square root of n which is the number units in the sample (s/sqrt (n)). The answer in this question is 1.96
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