An athletic trainer knows that the relationship between an athlete's resting heart rate and heart rate after exercise is positively correlated. From a sample of 12 athletes, the athletic trainer recorded each athlete's resting heart rate, and heart rate, in beats per minute (bpm), after 5 minutes of moderate exercise. On average, the resting heart rate is 50, with an SD of 6 bpm. The heart rate after exercise is on average 68 with an SD of 12 bpm. Complete the linear regression equation with the estimated intercept. Your answer will be a whole number predicted heart rate after exercise = 1.3*resting heart rate +
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A fitness instructor wants to understand the relationship between her heart rate during a workout and the calories burned per minute during the workout. She recorded these two measurements over the course of several workouts. StatCrunch was used to create the output below: For any numeric responses, round your answers to four decimal places. Use the regression equation to provide a point estimate for a workout when the average heart rate is 150 beats per minute: y = The fitness instructor would like to estimate the number of calories burned during a workout when her heart rate is 150 beats per minute. Which interval would be the most appropriate to provide? prediction interval confidence interval Interpret the interval you selected in part b: With 95% confidence, we estimate the Select an answer number of calories burned during a workout mean number of calories burned during all workouts is between and when the average heart rate is beats per minute.
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