Q1) Moe's Computer Store hired the advertising agency to make 2 advertisements of comparable quality for their new television-computer wristwatch. To see if both ads led to same distribution of sales, Moe hired statistician to determine. 2 random samples were taken on 12 months of first year of sales for these innovative watches. Data is given in the table below. Process data as illustrate in the paper on the Mann-Whitney U test.
|
Ad 1
|
26
|
39
|
28
|
33
|
43
|
32
|
45
|
25
|
39
|
42
|
45
|
49
|
|
Ad 2
|
36
|
31
|
46
|
45
|
37
|
49
|
40
|
41
|
35
|
44
|
39
|
43
|
a) H0:
b) H1:
c) Critical Value:
d) Test Statistic (Show procedure.) z =
e) Decision on H0:
f) Conclusion on the problem: