A baseball coach was interested in estimating the true mean speed of fastball pitches in
his league with a confidence interval. The coach recorded the speed in kilometers per
hour of each fastball in a random sample of 100 pitches and found that the mean was
105.15 kph with a margin of error of 5.25 kph. Construct a confidence interval to
estimate the population mean speed of the pitches. What is the lower confidence limit
for this confidence interval?
Answers: 2
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A baseball coach was interested in estimating the true mean speed of fastball pitches in
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