12.48 Stride Rate, continued Refer to Exercise 12.47. a. Estimate the average stride rate if the speed

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12.48 Stride Rate, continued Refer to Exercise 12.47.

a. Estimate the average stride rate if the speed is 5.8 metres per second using a 95% confidence interval.

b. Predict the actual number of the stride rate if the speed is 5.8 metres per second using a 95% prediction interval.

c. Would it be advisable to use the least-squares line from Exercise 12.47 to predict stride rate if the speed is 2 metres per second? Explain.

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