Question

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

Answer 1

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