Answer questions 1-6 based on the study below. (Type in
the data provided in the table below in
Minitab/Jamovi.)
A consumer preference study compares the effects of three
different bottle designs (A, B, and C) on sales of a popular fabric
softener. A completely randomized design is employed. Specifically,
15 supermarkets of equal sales potential are selected, and 5 of
these supermarkets are randomly assigned to each bottle design. The
number of bottles sold in 24 hours at each supermarket is recorded.
The data obtained are displayed in the following table:
Bottle Design
A
B
C
16
33
23
18
31
27
19
37
21
17
29
28
13
34
25
Based on the problem above, which of the following hypotheses
are the null (H0) and alternative (HA)
hypotheses, respectively, needed to test whether there are
differences in the effect the different bottle designs have on
sales?
a. ?A = ?B = ?C
d. ?A < ?B < ?C
b. ?A < ?B = ?C
e. ?A > ?B > ?C
c. ?A = ?B < ?C
f. ?A > ?B = ?C
g. At least two means differ.
a and b
a and d
a and e
b and f
c and d
a and g