For problem #2: given so little info, how do you find the f ratio and critical v

Question

For problem #2: given so little info, how do you find the f ratio and critical value? (with the f-distribution table).
Thank you!! arning Check 1 A researcher obtains -4.01 with df-2, 14. Is this value sufficient to reject Ho with ?-.05? Is it big enough to reject Ho if ? .01? Answer + Fora 05, the critical value is 3.74 and you should reject Ho For a .01, the critical value is 6.51 and you should fail to reject Ho 2. For an ANOVA evaluating the mean differences among three treatment conditions 05 with n 10 in each treatment, what is the critical value for the F-ratio with a Answer The F-ratio has df 2,27 and the critical value is 3.35. 5 6

Explanation / Answer

Solution:-

1)

F = 4.01

D.F = 2, 14

P-value = 0.042

FCritical, 0.05 = 3.74

At alpha 0.05 the critical value is 3.74, hence we cannot reject the null hypothesis.

FCritical, 0.01 = 6.52

At alpha 0.01 the critical value is 6.52, hence we have to reject the null hypothesis.

2)

alpha = 0.05

DFNumerator = 3 - 1 = 2

DFDenominator = 30 - 3 = 27

Fcritical, 2, 27 = 3.354

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