Question

A statistics instructor wonders whether significant differences exist in her students’ final exam scores in her...

A statistics instructor wonders whether significant differences exist in her students’ final exam scores in her three different sections. She randomly selects the scores from 10 students in each section. A portion of the data is shown in the accompanying table. Assume exam scores are normally distributed.

Section 1 Section 2 Section 3
60 75 86
94 64 68
56 73 65
57 71 77
60 83 91
86 67 79
66 76 94
85 70 56
82 80 50
63 72 86
Section Score
Section 1 60
Section 1 94
Section 1 56
Section 1 57
Section 1 60
Section 1 86
Section 1 66
Section 1 85
Section 1 82
Section 1 63
Section 2 75
Section 2 64
Section 2 73
Section 2 71
Section 2 83
Section 2 67
Section 2 76
Section 2 70
Section 2 80
Section 2 72
Section 3 86
Section 3 68
Section 3 65
Section 3 77
Section 3 91
Section 3 79
Section 3 94
Section 3 56
Section 3 50
Section 3 86


a. Construct an ANOVA table. (Round "Sum Sq" and "Mean Sq" to 1 decimal place, "F value" to 3, and "p-value" to 3 decimal places. Before fitting your model, type options(scipen=10) and options(digits=10) into your R console.)

ANOVA
Source of Variation Df Sum Sq Mean Sq F value Pr(>F)
Section
Residuals

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Answer #1

hii..i am trying to provide R comands to you with output. if you have any querry please ask by comment i will try to respond you as soon as will be possible. please like the answer. thanks...

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