Upload
arjama-mukherjee
View
195
Download
3
Embed Size (px)
Citation preview
Case study on ANOVAArjama Mukherjee
DM14D08Core-Marketing
Data
Knee level Waist level Eye level
Weekday_morning 64 72 80
Weekday_evening 68 76 84
Weekend_morning 72 80 88
Weekend_evening 76 84 92
1st step• Create null hypothesis
Ho = Sales of kidzee has got no significant impact on keeping it at different shelf height at level of significance 0.05
Mean(k)=Mean(w)=Mean(e) at L.O.S=0.05
Step 2• Group mean
70,78,76
• Grand mean78
Step 3• Degrees of freedom within
9
• Degrees of freedom among2
F table
Data view Variable view
SS among = 512SS within = 240f = 9.6
Interpretation If fobs>ftable then we reject Ho
f table = f (2,9) at 0.05 L.O.S = 4.26
Since fobs > f table(critical) thus, we Reject Ho
Conclusion• Sales are significantly different at different shelf height• Best shelf height = eye level (because group level of eye is highest)
P obs = 0.006P Ho = 0.05
Therefore we reject Ho.
Thanking You