TABLE 10-5 To test ofa business school preparation course,8 students took a gene

Question

TABLE 10-5 To test ofa business school preparation course,8 students took a general business test before and after the course. The results are given below. the effectiveness Exam Score Before Course Exam Score After Course (2) 670 3 910 1,000 550 450 820 870 820 8 630 610 True or False: Referring to Table 10-5 in examining the differences between related samples we are essentially sampling from an underlying population of difference O A. True O B. False Beset Selection Question 29 of 30 True or False: For all two-sample tests, the sample sizes must be equal in the two groups. A. True O B. False

Explanation / Answer

(28)

True

(29)

False

TABLE 9.1 :

Since the null hypothesis is rejected, this means that the mean is greater than 20. So answer is TRUE

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