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A soccer ball manufacturer wants to estimate the mean circumference of? mini-soccer balls within 0.05 inch....

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Basic Math

A soccer ball manufacturer wants to estimate the meancircumference of? mini-soccer balls within 0.05 inch. Assume thepopulation of circumferences is normally distributed.

?(a) Determine the minimum sample size required to construct a95?% confidence interval for the population mean. Assume thepopulation standard deviation is 0.25 inch.

?(b) Repeat part? (a) using a population standard deviation of0.35 inch.

?(c) Which standard deviation requires a larger sample? size?Explain

Answer & Explanation Solved by verified expert
3.7 Ratings (359 Votes)
Given that the circumference of minisoccer balls is normallydistributedA soccer ball manufacturer wants to estimate the meancircumference of minisoccer balls within 005 inchaWe know that the minimum sample size required to construct a1 100 confidence interval for    See Answer
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