Answered: Step 1: Write down your null and…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

Step 1: Write down your null and alternative hypotheses. Use p1 to represent the proportion of the population who preferred Brand 1 over the other two brands, and p2 to represent the population proportion for Brand 2 and p3 for Brand 3.

H₀:

H_a:

Group of answer choices

Null: There is a preference for one or more brands, that is p’s are not all equal. Alternative: There is no brand preference, that is p1 = p2 = p3 = 1/3;

Null: There is no brand preference, that is p’s are not all equal. Alternative: There is a preference for one or more brands, that is p1 = p2 = p3 = 1/3;

Null: There is no brand preference, that is p1 = p2 = p3 = 1/3; Alternative: there is a preference for one or more brands, that is p’s are not all equal.

Null: There is a preference for one or more brands, that is p1 = p2 = p3 = 1/3; Alternative: There is no brand preference, that is p’s are not all equal.

Transcribed Image Text:Observed Frequency Expected Frequency |(fe) Brand |(fo) |(fo - fe)2 / fe 1 78 2 117 3 105 Test statistic: Total | 300 Step 2: Find the test statistic. Is this a z-score, t-score or chi-square statistic? Find the corresponding degrees of freedom.

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