Mathematics, 12.03.2020 05:03 ImGoodAtLife7797

A soccer ball manufacturer wants to estimate the mean circumference of soccer balls within 0.14 inch.
â(a) Determine the minimum sample size required to construct a 99â% confidence interval for the population mean. Assume the population standard deviation is 0.5 inch.
â(b) The sample mean is 27.9 inches. With a sample size of 94â, a 99â% level ofâ confidence, and a population standard deviation of 0.5 âinch, does it seem possible that the population mean could be less than 28 âinches? Explain.
Click here to view page 1 of the Standard Normal Table. LOADING... Click here to view page 2 of the Standard Normal Table. LOADING...
â(a) The minimum sample size required to construct a 99â% confidence interval is
nothing soccer balls.
â(Round up to the nearest wholeâ number.)

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