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A manufacturer of exercise equipment wanted to collect data on the effectiveness of their equipment A magazine article compared how long it would take men and women to burn 200 calories during light or heavy workouts on various kinds of exercise equipment. The results summarized in the accompanying table are the average times for a group of physically active young men and women whose performances were measured on a representative sample of exercise equipment. Assume normality of the population Complete parts (a) through (c) below Click the icon to view the data table CTED a) On average, how many minutes longer than a man must a woman exercise at a light exertion rate in order to burn 200 calories? Find a 95% confidence interval minutes (Round to one decimal place as needed) b) Estimate the average number of minutes longer a woman must work out at a light exertion than at heavy exertion to get the same benefit. Find a 95% confidence interval 0 minutes (Round to one decimal place as needed) c) These data are actually averages rather than individual times. How might this affect the margins of enor in these confidence intervals? Choose the correct answer below OA. Individual times will be more variable. The standard error would be larger, resulting in a larger margin of error OB. Individual times will be less variable. The standard error would be smaller, resulting in a smaller margin of emor OC. The margin of error will be unaffected. Average Minutes to Burn 200 Calories Hard Exertion Men Women 13 17 11 17 13 17 M 13 16 22 23 25 16 20 Print Data table Machine Type Treade Treadmill X-C skier Stair climber Rowing machine Exercise rider Exercise bike Done Light Exertion Men 13 15 30 20 20 27 M Women wom 23 35 2 37 37 ** 44

A manufacturer of exercise equipment wanted to collect data on the effectiveness of their equipment A magazine article compared how long it would take men and women to burn 200 calories during light or heavy workouts on various kinds of exercise equipment. The results summarized in the accompanying table are the average times for a group of physically active young men and women whose performances were measured on a representative sample of exercise equipment. Assume normality of the population Complete parts (a) through (c) below Click the icon to view the data table CTED a) On average, how many minutes longer than a man must a woman exercise at a light exertion rate in order to burn 200 calories? Find a 95% confidence interval minutes (Round to one decimal place as needed) b) Estimate the average number of minutes longer a woman must work out at a light exertion than at heavy exertion to get the same benefit. Find a 95% confidence interval 0 minutes (Round to one decimal place as needed) c) These data are actually averages rather than individual times. How might this affect the margins of enor in these confidence intervals? Choose the correct answer below OA. Individual times will be more variable. The standard error would be larger, resulting in a larger margin of error OB. Individual times will be less variable. The standard error would be smaller, resulting in a smaller margin of emor OC. The margin of error will be unaffected. Average Minutes to Burn 200 Calories Hard Exertion Men Women 13 17 11 17 13 17 M 13 16 22 23 25 16 20 Print Data table Machine Type Treade Treadmill X-C skier Stair climber Rowing machine Exercise rider Exercise bike Done Light Exertion Men 13 15 30 20 20 27 M Women wom 23 35 2 37 37 ** 44

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A manufacturer of exercise equipment wanted to collect data on the effectiveness of their equipment. A magazine article compared how long it would take men and women to burn 200 calories during light or heavy workouts on various kinds of exercise equipment. The results summarized in the accompanying table are the average times for a group of physically active young men and women whose performances were measured on a representative sample of exercise equipment. Assume normality of the population. Complete parts (a) through (c) below. Click the icon to view the data table. C a) On average, how many minutes longer than a man must a woman exercise at a light exertion rate in order to burn 200 calories? Find a 95% confidence interval. minutes (Round to one decimal place as needed.) b) Estimate the average number of minutes longer a woman must work out at a light exertion than at heavy exertion to get the same benefit. Find a 95% confidence interval. (₁) minutes (Round to one decimal place as needed.) c) These data are actually averages rather than individual times. How might this affect the margins of error in these confidence intervals? Choose the correct answer below. O A. Individual times will be more variable. The standard error would be larger, resulting in a larger margin of error. O B. Individual times will be less variable. The standard error would be smaller, resulting in a smaller margin of error. O C. The margin of error will be unaffected. - X Average Minutes to Burn 200 Calories Hard Exertion Men Women 13 17 11 17 13 17 13 16 23 25 16 20 Print Data table Machine Type Treadmill X-C skier Stair climber Rowing machine Exercise rider Exercise bike Done Light Exertion Men 13 15 29 Women 23 22 36 26 44
Transcribed Image Text:A manufacturer of exercise equipment wanted to collect data on the effectiveness of their equipment. A magazine article compared how long it would take men and women to burn 200 calories during light or heavy workouts on various kinds of exercise equipment. The results summarized in the accompanying table are the average times for a group of physically active young men and women whose performances were measured on a representative sample of exercise equipment. Assume normality of the population. Complete parts (a) through (c) below. Click the icon to view the data table. C a) On average, how many minutes longer than a man must a woman exercise at a light exertion rate in order to burn 200 calories? Find a 95% confidence interval. minutes (Round to one decimal place as needed.) b) Estimate the average number of minutes longer a woman must work out at a light exertion than at heavy exertion to get the same benefit. Find a 95% confidence interval. (₁) minutes (Round to one decimal place as needed.) c) These data are actually averages rather than individual times. How might this affect the margins of error in these confidence intervals? Choose the correct answer below. O A. Individual times will be more variable. The standard error would be larger, resulting in a larger margin of error. O B. Individual times will be less variable. The standard error would be smaller, resulting in a smaller margin of error. O C. The margin of error will be unaffected. - X Average Minutes to Burn 200 Calories Hard Exertion Men Women 13 17 11 17 13 17 13 16 23 25 16 20 Print Data table Machine Type Treadmill X-C skier Stair climber Rowing machine Exercise rider Exercise bike Done Light Exertion Men 13 15 29 Women 23 22 36 26 44
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