Interested in assessing the efficacy of different teaching styles on test perfor

Question

Interested in assessing the efficacy of different teaching styles on test performance, researchers divide 200 students in an introductory biology course into 5 groups of 40 students. Each group is taught the same material using a different teaching method, and their mean test scores are compared using analysis of variance, which results in a test statistic of F = 1.59. The value from this F-distribution at which point the upper tail area is 0.05 is 2.42. What can you say about the results?

a.

df1 = 4, df2 = 195, p-value < 0.05

b.

df1 = 4, df2 = 199, p-value > 0.05

c.

df1 = 5, df2 = 200, p-value < 0.05

d.

df1 = 4, df2=195, p-value > 0.05

e.

df1 = 4, df2 = 35, p-value > 0.05

a.

df1 = 4, df2 = 195, p-value < 0.05

b.

df1 = 4, df2 = 199, p-value > 0.05

c.

df1 = 5, df2 = 200, p-value < 0.05

d.

df1 = 4, df2=195, p-value > 0.05

e.

df1 = 4, df2 = 35, p-value > 0.05

Explanation / Answer

test statistic of F = 1.59

The value from this F-distribution at which point the upper tail area is 0.05 is 2.42.

P-value = 0.1785

Answer : df1 = 4, df2=195, p-value > 0.05

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