A high school gym teacher hypothesized that area varsity pitchers are throwing fastballs at an average speed
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Question:
A high school gym teacher hypothesized that area varsity pitchers are throwing fastballs at an average speed of 74 mph. To support his theory, he took a random sample of varsity pitchers and timed them with a radar gun. His 90% confidence interval was from 72.4 mph to 78.6 mph. How should he explain what this confidence interval means to his colleagues?
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