Question

An experiment has been conducted for four treatments with seven blocks. Complete the following analysis of...

An experiment has been conducted for four treatments with seven blocks. Complete the following analysis of variance table. (Round your values for mean squares and F to two decimal places, and your p-value to three decimal places.)

Source
of Variation
Sum
of Squares
Degrees
of Freedom
Mean
Square
F p-value
Treatments 900
Blocks 200
Error
Total 1,600

Use α = 0.05 to test for any significant differences.

State the null and alternative hypotheses.

H0: At least two of the population means are equal.
Ha: At least two of the population means are different.H0: Not all the population means are equal.
Ha: μ1 = μ2 = μ3 = μ4    H0: μ1μ2μ3μ4
Ha: μ1 = μ2 = μ3 = μ4H0: μ1 = μ2 = μ3 = μ4
Ha: Not all the population means are equal.H0: μ1 = μ2 = μ3 = μ4
Ha: μ1μ2μ3μ4

Find the value of the test statistic. (Round your answer to two decimal places.)

Find the p-value. (Round your answer to three decimal places.)

p-value =

State your conclusion.

Reject H0. There is sufficient evidence to conclude that the means of the four treatments are not all equal.Reject H0. There is not sufficient evidence to conclude that the means of the four treatments are not all equal.    Do not reject H0. There is not sufficient evidence to conclude that the means of the four treatments are not all equal.Do not reject H0. There is sufficient evidence to conclude that the means of the four treatments are not all equal.

Homework Answers

Answer #1

>> The analysis of variance table:

Source of Variation Sum of Squares Degrees of Freedom Mean Square F Statistic p value
Treatments 900 3 300 9.00 0.001
Blocks 200 6 33.33
Error 500 18 27.78
Total 1600 27

>> The null and alternative hypotheses:

H0: μ1 = μ2 = μ3 = μ4
Ha: Not all the population means are equal.

>> The value of the test statistic = 9.00

>> The p-value = 0.001

>> Conclusion: Reject H0. There is sufficient evidence to conclude that the means of the four treatments are not all equal.

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