Chapter problem 10.83 To test the effectiveness of this promotion, what is the r
ID: 3303933 • Letter: C
Question
Chapter problem 10.83 To test the effectiveness of this promotion, what is the right test to conduct? O z test O t test O Matched-pair t test O None of above QUESTION 20 Chapter problem 10.83 To test the effectiveness of this promotion, what is the correct hypothesis? QUESTION 21 Chapter problem 10.83 To test the effectiveness of this promotion, what is the degree of freedom of the test? 25 48 50 QUESTION 22 Chapter problem 10.83 To test the effectiveness of this promotion, what is the test statistic? QUESTION 23 Chapter problem 10.83 Using = 0.05, based on the test, what conclusion we can draw? O There is not enough evidence to conclude that the average credit card balance was higher after the promotion than before promotion. O There is enough evidence to conclude that the average credit card balance was higher after the promotion than before promotion. O There is not enough evidence to conclude that the average credit card balance was not higher after the promotion than before promotion. O There is enough evidence to conclude that the average credit card balance was not higher after the promotion than before promotion.Explanation / Answer
since data are not given , i will answer as much as i can
post rest questions again
19) c) matched paired t-test
20)option d ) is correct
21) df = n- 1
22) TS = (xbar )/(s/sqrt(n))