Question

In: Statistics and Probability

Develop the analysis of variance computations for the following completely randomized design. At α = 0.05,...

Develop the analysis of variance computations for the following completely randomized design. At α = 0.05, is there a significant difference between the treatment means?

Treatment
A B C
135 106 93
120 114 82
114 124 84
106 104 102
132 107 90
115 108 117
128 96 110
102 115 120
104 99
82 93

xj

119 106 99

sj2

143.71 128.67 173.56

State the null and alternative hypotheses.

H0: Not all the population means are equal.
Ha: μA = μB = μCH0: μAμBμC
Ha: μA = μB = μC    H0: At least two of the population means are equal.
Ha: At least two of the population means are different.H0: μA = μB = μC
Ha: μAμBμCH0: μA = μB = μC
Ha: Not all the population means are equal.

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

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

p-value =

State your conclusion.

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

Solutions

Expert Solution

The statistical software output for this problem is :

H0: At least two of the population means are equal.
Ha: At least two of the population means are different.

Test statistics = 6.04

P-value = 0.0072

Reject H0. There is sufficient evidence to conclude that the means of the three

treatments are not equal.


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