Answer:
Given that,
The following is a sample test of the hypothesis that means are equal.
Treatment 1 | Treatment 2 | Treatment 3 |
9 | 13 | 10 |
7 | 20 | 9 |
11 | 14 | 15 |
9 | 13 | 14 |
12 | 15 | |
10 |
Claim:
Treatments means are equal.
The null and alternative hypothesis is:
: At least one of the mean is different.
Level of significance = 0.05
By using excel we can solve this question easily:
First, enter all data into excel.
Click on Data -------> Data Analysis--------> Anova: Single-Factor-----> Input Data -------> Select all data -------> Output Range : Select any empty cell --------> ok
We get,
Test statistic = F = 5.118
Critical value = 3.885
The p-value= 0.0247
Since the p-value < 0.05
So, we reject H0.
Test statistic > Critical value we reject the null hypothesis.
Conclusion:
Not all means are equal.
Answer: Option A
Note:
** As per Chegg guidelines we should solve only the first
question. So I have done it.
For the other question please post differently mentioning your
requirement.
28. The following is sample information Test the hypothesis that the treatment means are equal. Treatment...
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