Title: Comparison of Four Popular Pizza Brands.
Author: Vaishnavi Patil
Introduction: This report analyses student ratings for four popular pizza brands: Domino’s is recognized for its quick delivery and diverse menu options, making it a favourite for convenience and variety. Pizza Hut is celebrated for its dine-in experience and unique crust offerings, appealing to those looking for a sit-down meal. La Pino’z stands out with its bold flavours and innovative toppings, attracting adventurous eaters. Oven Story is known for its emphasis on quality ingredients and artisanal pizzas, catering to those who prioritize taste and freshness. Each brand offers distinct features that resonate with student preferences, making them prominent choices in the pizza landscape.
Objective: To compare the four Popular Pizza Brands.
Data Collection: In this report, 30 students from ITM rated four popular pizza brands using a Likert scale ranging from 1 to 10 via a Google Form, where 1 represented the lowest preference and 10 represented the highest. A one-way ANOVA analysis was then performed using Excel to evaluate the differences in their ratings. This statistical method allows us to determine whether there are significant variations in student preferences among the four pizza brands, offering insights into which brand resonates most with the student population.
Data Analysis:
|
ANOVA: Single Factor |
|
ANOVA |
||||||
|
Source of Variation |
SS |
df |
MS |
F |
P-value |
F crit |
|
Between Groups |
19.27 |
3.00 |
6.42 |
0.99 |
0.40 |
2.68 |
|
Within Groups |
750.20 |
116.00 |
6.47 |
|||
|
Total |
769.47 |
119.00 |
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Null Hypothesis (H₀): There is no significant difference in the mean ratings of Domino’s, Pizza Hut, La Pino’z, and Oven Story (the means of the groups are equal).
Alternative Hypothesis (H₁): There is a significant difference in the mean ratings of at least one pair among Domino’s, Pizza Hut, La Pino’z, and Oven Story (at least one group mean is different).
The F-statistic (0.99) measures the ratio of mean square between groups to mean square within groups, testing whether variability between group means is greater than expected by chance. The P-value (0.40) indicates the likelihood of observing the data under the null hypothesis (no difference between group means). Since the P-value is greater than 0.05, we fail to reject the null hypothesis, suggesting no significant differences in mean ratings among Domino’s, Pizza Hut, La Pino’z, and Oven Story.
Conclusion:
The P-value is 0.40, which is greater than 0.05, and the F-value (0.99) is less than the critical F (2.68).
This means we fail to reject the null hypothesis, indicating that there is no statistically significant difference between the means of the ratings for Domino’s, Pizza Hut, La Pino’z, and Oven Story.