A one-way analysis of variance was conducted to compare the mean midterm exam sc

Question

A one-way analysis of variance was conducted to compare the mean midterm exam scores of students from three different instructors' sections of STAT 200. All necessary assumptions were met. Results are presented in the ANOVA source table below. Sourcedf SS MS F p Instructor 2 250.4 125.2 3.58 0.032 Error 85 2976.0 35.0 Total 87 3226.4 Given these results we should [Select ] There Select The total sample size was [Select ] vl the null hypothesis at the 0.05 level. that the means are not all equal.

Explanation / Answer

Since p - value < 0.05,

We should reject the null hypothesis at 0.05 level. There is enough evidence to conlcude that the means are not all equal.

The total sample size = 87 + 1 = 88

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