Sales Data 505 classic etch a sketch for Cincinnatti Sales 2006 WK1 WK2 WK3 WK4
ID: 2923772 • Letter: S
Question
Sales Data 505 classic etch a sketch for Cincinnatti
Sales 2006
WK1
WK2
WK3
WK4
November
15
24
26
61
December
70
109
145
39
Run a test to analyze the difference between November 2006 and December 2006 Etch A Sketch sales in Cincinnatti.
Sales in December 2006
Cincinnati, Ohio
Charleston, SC
Cleveland, Ohio
Indianapolis
Pittsburg
WK 1
70
48
177
113
150
WK2
109
71
255
168
246
WK3
145
107
311
246
307
WK4
39
47
87
75
103
Run a test to compare the difference in sales in Cincinnati to the corresponding sales in the four control cities: Charleston, Cleveland, Indianapolis and Pittsburg.
Sales Data 505 classic etch a sketch for Cincinnatti
Sales 2006
WK1
WK2
WK3
WK4
November
15
24
26
61
December
70
109
145
39
Explanation / Answer
a) we can use t- test or anova to test the difference
sinc p-value = 0.0568 > 0.05
we fail to reject the null and conclude that there is no significant difference between November 2006 and December 2006
2)
p-value = 0.0516 > 0.05
hence we fail to reject the null and conclude that there is no significant difference in sales in Cincinnati to the corresponding sales in the four control cities: Charleston, Cleveland, Indianapolis and Pittsburg.
Anova: Single Factor SUMMARY Groups Count Sum Average Variance November 4 126 31.5 409.6666667 December 4 363 90.75 2128.25 ANOVA Source of Variation SS df MS F P-value F crit Between Groups 7021.125 1 7021.125 5.53298309 0.056885 5.987378 Within Groups 7613.75 6 1268.958333 Total 14634.875 7Related Questions
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