Title: One Way ANOVA calculation for 4 Shampoo Products.
Author:Aditi Bhoir
MMS, Batch A
Roll No. 06
Introduction:
In this analysis 4 Products have been taken, namely:
TRESemmé is an American brand of hair care products first manufactured in 1947 by the Godefroy Manufacturing Company in Manhattan, New York City, New York, United States. It was named after the renowned hair care expert Edna L. Emme. The brand name is a phonetic respelling of “beloved” (French: très-aimé) that includes the surname of its namesake.
Dove is a personal care brand that is owned by Unilever. The origin of the brand is in the United Kingdom. Lever brothers first launched Dove in 1957. The popularity of the brand increased in the mid of 1970’s. In 2002, the organization started campaigning for real beauty.
L’Oréal S.A. is a French personal care company headquartered in Clichy, Hauts-de-Seine,with a registered office in Paris. It is the world’s largest cosmetics company and has developed activities in the field, concentrating on hair color, skin care, sun protection, make-up, perfume, and hair care.
Sunsilk is a British hair care brand produced by the company Unilever. The brand was introduced in 1954 in the UK and available in most countries globally. It is a hair care brand in Southeast Asia (Malaysia, Vietnam, Philippines, Indonesia, and Thailand).
Objective: To Compare 4 Products by the way of One Way ANOVA.
Data Collection: Students of our batch were requested to grade the following products on the scale of 1-10 and One Way ANOVA was calculated.
Data Analysis:
Hypothesis:
H0: All products are equal (A=B=C=D)
H1: Any one of product is different.
|
Source of Variance |
SS |
DF |
MSS |
F |
|
Between Groups |
38.95 |
3 |
12.9833 |
|
|
Within Groups |
487 |
76 |
6.4078 |
|
|
Total |
525.95 |
79 |
|
2.0261 |
Result: Table F=0.05, 3 DF, 76 DF = 2.72
As Calculated F = 2.0261 is less than tabulated F= 2.72, accept H0, reject H1, which means all the products are same.