Author: Rahil Parekh
Introduction:
The iPhone, Apple’s flagship, is celebrated for its seamless integration with the Apple ecosystem, user-friendly interface, and consistent performance across generations. Samsung Galaxy, a popular choice among Android users, offers cutting-edge technology, vibrant displays, and extensive customization. OnePlus has quickly gained popularity for its high-performance specifications, affordability, and loyal fan base. Google Pixel, known for its pure Android experience, provides impressive camera capabilities and regular updates directly from Google.
Objectives:
To compare the four popular mobile phones: iPhone, Samsung Galaxy, OnePlus, and Google Pixel.
Data Collection:
Feedback was gathered from 25 friends on iPhone, Samsung Galaxy, OnePlus, and Google Pixel, asking them to rate specific aspects such as performance, camera quality, design, and value for money on a scale of 1 to 10.
ANOVA: Single Factor
| SUMMARY | ||||
|---|---|---|---|---|
| Groups | Count | Sum | Average | Variance |
| iPhone | 20 | 148 | 7.4 | 2.875 |
| Samsung Galaxy | 20 | 145 | 7.25 | 3.225 |
| OnePlus | 20 | 150 | 7.5 | 3.275 |
| Google Pixel | 20 | 151 | 7.55 | 3.05 |
| ANOVA | ||||||
|---|---|---|---|---|---|---|
| Source of Variation | SS | df | MS | F | P-value | F crit |
| Between Groups | 2.95 | 3 | 0.9833 | 0.315 | 0.815 | 2.724944 |
| Within Groups | 237.9 | 76 | 3.1303 | |||
| Total | 240.85 | 79 |
The conclusion and hypothesis testing process remain the same:
- Hypothesis:
- Null Hypothesis: All mobile phones have the same average rating.
- Alternative Hypothesis: At least one mobile phone differs in average rating.
- Conclusion: Since the P-value (0.815) is greater than 0.05, we accept the null hypothesis, suggesting that all four mobile phones have similar average ratings.