Quantitative Methods
A restaurant owner operates three restaurants within a city. One in a major shopping centre (A), one near the college campus (B), and one at the park area (C). The manager has collected the following data on daily sales (in thousands of Kwacha).
|
Day
|
A
|
B
|
C
|
|
Monday
|
10.5
|
8.4
|
5.9
|
|
Tuesday
|
8.4
|
9.3
|
7.1
|
|
Wednesday
|
12.6
|
11.4
|
6.7
|
|
Thursday
|
18.3
|
7.9
|
14.2
|
|
Friday
|
10.8
|
6.3
|
13.7
|
Construct an ANOVA table for this experiment
Is there evidence of difference in mean sales among the restaurants? (use =0.05 ).
Is there evidence at α=0.05 of a difference in the mean sales for five days?
Estimate the difference in mean sales between the restaurant created at the shopping centre and near the college campus. Use the 95% confidence interval.
Are the mean sales for Wednesday and Thursday significantly different?