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Justifying Claims: Slope of Regression Models Practice Test
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Q1
A sports scientist models a runner’s 5K time (minutes) from the number of weeks in a training program. The scientist claims that training reduces 5K time by between 0.10 and 0.30 minutes per week. A 95% confidence interval for the slope is $(-0.28, -0.12)$ minutes per week. Is the claim supported by the confidence interval?
A sports scientist models a runner’s 5K time (minutes) from the number of weeks in a training program. The scientist claims that training reduces 5K time by between 0.10 and 0.30 minutes per week. A 95% confidence interval for the slope is $(-0.28, -0.12)$ minutes per week. Is the claim supported by the confidence interval?