For numbers 18 to 21: A study was conducted using 50 undergraduates at a large private university who volunteered to participate in the research as partial fulfillment of a course requirement. One of the items studi ed was the maximum daly amount of alcohol consumed in the last month. Base on the datain the following table, are there differences between males and femal es in themaimum amount of alcohol consumedin any one day in the pastmonth? Use 5% level of significance. Assume equal variances Al cohol consumed Mean Male 8.2 female 5.6 5.7 30 5.9 Standard deviation Number of students 20 18. Which of the following is the appropriate alternative hypothesis? A There are more female participants than males B. The amount of alcohol consumed by males is higherthan the amount consumed by the females. C The amount of alcohol consumed bymales and females in thepast month isnot the same. D. The amount of alcohol consumed by males and females in the past month is the same. 9. The pooledvariance would be? A 3456 B. 6.73 C. 33.408 D. 5.780 0. What is the value of the test statistics? A 1.980 C.0.270 D. 3.733 B. 1.558
For numbers 18 to 21: A study was conducted using 50 undergraduates at a large private university who volunteered to participate in the research as partial fulfillment of a course requirement. One of the items studi ed was the maximum daly amount of alcohol consumed in the last month. Base on the datain the following table, are there differences between males and femal es in themaimum amount of alcohol consumedin any one day in the pastmonth? Use 5% level of significance. Assume equal variances Al cohol consumed Mean Male 8.2 female 5.6 5.7 30 5.9 Standard deviation Number of students 20 18. Which of the following is the appropriate alternative hypothesis? A There are more female participants than males B. The amount of alcohol consumed by males is higherthan the amount consumed by the females. C The amount of alcohol consumed bymales and females in thepast month isnot the same. D. The amount of alcohol consumed by males and females in the past month is the same. 9. The pooledvariance would be? A 3456 B. 6.73 C. 33.408 D. 5.780 0. What is the value of the test statistics? A 1.980 C.0.270 D. 3.733 B. 1.558
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter29: Tolerance, Clearance, And Interference
Section: Chapter Questions
Problem 16A: Spacers are manufactured to the mean dimension and tolerance shown in Figure 29-12. An inspector...
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