Title – Smartphone Brand Ratings
Author – Tisha Saglani (021330024432)
Introduction – Favorite smartphone brands like Apple, Oppo, Samsung and Redmi are known for their innovation, diverse features and strong user satisfaction. These brands consistently offer cutting-edge technology and cater to various consumer needs, making them leaders in the market.
Objective – To determine whether consumer responses are consistent or vary across 4 smartphone brands.
Data Collection – Data for this study was collected through a survey of 20 classmates, using a Google form that asked participants to rate each smartphone brand on a scale of 1 to 10. Following the data collection, single factor Anova was conducted to analyze the differences in ratings between the brands.
Data Analysis –
|
ANOVA |
||||||
|
Source of Variation |
SS |
df |
MS |
F |
P-value |
F crit |
|
Between Groups |
59.90476 |
3 |
19.96825 |
2.766964 |
0.047129 |
2.718785 |
|
Within Groups |
577.3333 |
80 |
7.216667 |
|||
|
|
||||||
|
Total |
637.2381 |
83 |
|
|
|
|
Null hypothesis(H0)– There is no significant difference in the average ratings between the four smartphone brands (Apple, Oppo, Samsung and Redmi)
Alternative Hypothesis (H1) – There is a significant difference in the average ratings between at least one pair of the four smartphone brands (Apple, Oppo, Samsung and Redmi.
As the P-value is 0.04 which is less than the significance level (0.05), this indicates that we would reject the null hypothesis.
Conclusion – As we reject the null hypothesis, we can state that there is a statistically significant difference in the average ratings among four smartphone brands. Therefore, all are not the same.