This box is 3/4 inch long, 1/2 inch wide, and 1/4inch deep. What is the volume of the box? 1/2 inch
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inch
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1 inches
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32 inch

Arandom sample of 45 observations results in a sample mean of 68. the population standard deviation is known to be 23 a. compute the margin of error at a 959% confidence interval. b. compute the 95% confidence interval for the population mean c. compute the 90% confidence interval for the population mean. d. compute the 75% confidence interval for the population mean