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11 Jun

2. Paired comparison/preference test:

Here is the result from a paired preference test with 60 subjects for the addition of a vanillin to a beverage compared to a beverage without added vanillin.

+ vanillin, Sample 437: preferred by 40.

- vanillin, sample 923: preferred by 20.

Write out the null hypothesis:

Use Appendix 7 in your textbook to analyze this result. What significance level do you find?

Write out your conclusions for this data:

What if the results were as follows?

+vanillin, Sample 437, preferred by 35

-vanillin, Sample 923, preferred by 25

Do your conclusions differ from above? Explain.

2. Paired comparison/preference test:

Here is the result from a paired preference test with 60 subjects for the addition of a vanillin to a beverage compared to a beverage without added vanillin.

+ vanillin, Sample 437: preferred by 40.

- vanillin, sample 923: preferred by 20.

Write out the null hypothesis:

Use Appendix 7 in your textbook to analyze this result. What significance level do you find?

Write out your conclusions for this data:

What if the results were as follows?

+vanillin, Sample 437, preferred by 35

-vanillin, Sample 923, preferred by 25

Do your conclusions differ from above? Explain.

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