TITLE: “A comparison of four TV brands: Sony, Samsung, MI, and Panasonic using a one-way ANOVA (Analysis of Variance) single-factor method.”
Author: Pulkit Agarwal
Introduction: In the highly competitive television market, customer satisfaction is a key indicator of a brand’s success and popularity. Sony, Samsung, MI, and Panasonic are leading TV manufacturers, each with a diverse product lineup aimed at catering to various consumer needs. A comparison based on customer ratings offers valuable insights into how these brands perform in terms of picture quality, durability, features, and overall user experience.
Objective: “To compare the ratings of four TV brands.”
Data Collection: I gathered feedback from my friends about four TV brands :Sony, Samsung, MI, and Panasonic and asked them to rate each brand on a scale from 1 to 5. To analyze the collected data, a one-way ANOVA (Analysis of Variance) was used to determine if there are significant differences among the four brands.
Data Analysis: The ANOVA: Single Factor test was performed to compare the ratings of four brands.
The hypotheses for the test are:
- Null Hypothesis (H0): All are same.
- Alternate Hypothesis (H1): Anyone of them is different.
The results of the ANOVA: Single Factor test are as follows:
|
ANOVA |
||||||
|
Source of Variation |
SS |
df |
MS |
F |
P-value |
F crit |
|
Between Groups |
5.37 |
3.00 |
1.79 |
1.02 |
0.39 |
2.68 |
|
Within Groups |
203.00 |
116.00 |
1.75 |
|||
|
Total |
208.37 |
119.00 |
The above table shows P vale as 0.39 which is more than 0.05 which means NULL Hypothesis is accepted.
Conclusion: All are same.