1. If the F value obtained from the data is .001 and df = 2,25, you should a. re
ID: 3313901 • Letter: 1
Question
1. If the F value obtained from the data is .001 and df = 2,25, you should a. reject the null hypothesis; b. retain the null hypothesis; c. rework the problem; such a value is impossible.
2. A group of 50 participants was divided equally into 5 groups. A Tukey HSD produced a value that led to the conclusion that Mean 1 was significantly larger than Mean 2, p < .05. Which of the following situations would lead to such a conclusion?
none of the other alternatives are correct.
3.
Big Bird analyzed a set of data and got an F value of less than 1.00. Big Bird should (hint: this is a "thinking" questions based upon the formula and eyeballing the critical values.)
= 13, = 5, MSerror = 36;Explanation / Answer
1) If Fcal =0.001 and df =2,25
F critical for alpha=0.01 =5.57 with d.f 2,25
F critical alpha= 0.05 = 3.38 with 2,25
F critical alpha=0.1= 2.53 with 2,25
SINCE F CALCULATED IS SMALLER THAN F CRITICAL, WE DO NOT REJECT NULL HYPOTHESIS AT ALL THIS LEVEL OF SIGNIFICANCE.
HENCE OPTION B RETAIN THE NULL HYPOTHESIS.
PLEASE NOTE: PLEASE POST QUESTION 2 AND 3 SEPARATELY.
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