A study was conducted to investigate whether local car mechanics charge women more than men for a transmission repair. The researcher selected randomly one man and one woman from everyone who had used the same mechanic for the same transmission repair. The process was repeated for a total of seven selected randomly cars. The repair prices and the differences are shown in the table. Car 1 Car 2 Car 3 Car 4 $2,000 Car 5 Car 6 Car 7 $3,000 $1,950 $2,250 $3,550 $3,200 $1,850 $3,285 $3,100 $1,975 $2,150 $2,850 $1,750 $2,175 Difference $265 $100 -$125 -$150 $150 $200 $75 Women Men Mean Standard Deviation Women $2,542.86 $691.27 $2,469.29 $599.77 Difference $73.57 $157.37 Men Dotplots of the data and the differences are shown. 1,700 1,900 2,100 2,300 2,500 2,700 2,900 3,100 3,300 3,500 3,700 1,700 1,900 2,100 2,300 -200 -150 -100 -50 Women 0 Men 2,500 2,700 2,900 3,100 3,300 3,500 Difference 50 ● 100 150 200 250 300 Do the data provide convincing statistical evidence that women pay more than men for the same transmission repair?
A study was conducted to investigate whether local car mechanics charge women more than men for a transmission repair. The researcher selected randomly one man and one woman from everyone who had used the same mechanic for the same transmission repair. The process was repeated for a total of seven selected randomly cars. The repair prices and the differences are shown in the table. Car 1 Car 2 Car 3 Car 4 $2,000 Car 5 Car 6 Car 7 $3,000 $1,950 $2,250 $3,550 $3,200 $1,850 $3,285 $3,100 $1,975 $2,150 $2,850 $1,750 $2,175 Difference $265 $100 -$125 -$150 $150 $200 $75 Women Men Mean Standard Deviation Women $2,542.86 $691.27 $2,469.29 $599.77 Difference $73.57 $157.37 Men Dotplots of the data and the differences are shown. 1,700 1,900 2,100 2,300 2,500 2,700 2,900 3,100 3,300 3,500 3,700 1,700 1,900 2,100 2,300 -200 -150 -100 -50 Women 0 Men 2,500 2,700 2,900 3,100 3,300 3,500 Difference 50 ● 100 150 200 250 300 Do the data provide convincing statistical evidence that women pay more than men for the same transmission repair?
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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