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Can you help me solve this question? A soccer ball manufacturer wants to estimate the mean circumference of soccer balls within 0.1 in. (a) Determine

Can you help me solve this question?

A soccer ball manufacturer wants to estimate the mean circumference of soccer balls within 0.1 in.

(a) Determine the minimum sample size required to construct a 90% confidence interval for the population mean. Assume the population standard deviation is 0.20 in.

(b) Repeat part (a) using a standard deviation of 0.30 in. Which standard deviation requires a larger sample size?

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