Asked by Nguyen Danny on Jun 26, 2024
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A soft drink company is introducing a new drink and wishes to evaluate which of three different formulas will be most popular.Five people taste each of the three formulas in a random order and rate each formula's taste on a scale from 1 to 10.The results are given below. Farmula 1 Farmula 2 Farmula 3 Person 1 964 Person 2 782 Persan 3 563 Persan 4 752 Persan 5 872\begin{array} { | c | c | c | c | } & \text { Farmula 1 } & \text { Farmula 2 } & \text { Farmula 3 } \\\hline \text { Person 1 } & 9 & 6 & 4 \\\hline \text { Person 2 } & 7 & 8 & 2 \\\hline \text { Persan 3 } & 5 & 6 & 3 \\\hline \text { Persan 4 } & 7 & 5 & 2 \\\hline \text { Persan 5 } & 8 & 7 & 2 \\\hline\end{array} Person 1 Person 2 Persan 3 Persan 4 Persan 5 Farmula 1 97578 Farmula 2 68657 Farmula 3 42322 Conduct a Friedman test at the 0.05 level of significance to determine if there are differences in consumer ratings between the three formulas.
Friedman Test
An analysis technique free from parameter-based assumptions, aimed at discovering discrepancies in treatment effects across a range of experiments.
Level Of Significance
The threshold in hypothesis testing that determines whether or not the null hypothesis can be rejected.
Consumer Ratings
Evaluations or assessments of products, services, or companies based on consumers' experiences, preferences, or satisfaction.
- Obtain the skill to implement the Friedman test in the assessment of differences among treatments or groups over a range of blocks.
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Learning Objectives
- Obtain the skill to implement the Friedman test in the assessment of differences among treatments or groups over a range of blocks.
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