(a) To compare the mean scores across classes, what are the degrees of freedom f
ID: 3364218 • Letter: #
Question
(a) To compare the mean scores across classes, what are the degrees of freedom for the ANOVA F statistic?
(b) The MSG = 11.306. If sp = 2.11, what is the F statistic? (Round your answer to two decimal places.)
F =
(c) Give an approximate (from Table E) or exact (from software) P-value. (Enter your answer to four decimal places.)
Sophomore
Junior
Senior 725
536
591
436 7.6
7.6
7.5
7.3 A survey looked at the value of recreational sports on college campuses. One of the questions asked each student to rate the Importance of recreational sports to college satlsfaction and success. Responses were on a 10-point scale wilth 1 Indicating total lack of Importance and 10 Indicating very high Importance. summartzes these results: The following table class (a) To compare the mean scores across classes, what are the degrees of freedom for the ANOVA P statistk? numerator d (b) The MSG-11.306. If se . 2.11, whatthe F statistic? (Round your answer to two decmal places.) Olve an approximate (from Table t) or exact (from software) P-value. (bter your answer to four decimal places.) places)
Explanation / Answer
(a) To compare the mean scores across classes, what are the degrees of freedom for the ANOVA F statistic?
Ans:Numerator df =4-1=3
Denominator df =725+536+591+436-4
=2284
(b) The MSG = 11.306. If sp = 2.11, what is the F statistic? (Round your answer to two decimal places.)
Ans: F=MSG/MSE
MSE=Sp2
=(2.11)2
=4.4521
F=MSG/MSE
=11.306/4.4521
=2.5394
F=2.53
(c) P value
Ans:Pvalue=FDIST(2.53,3,2284)
=0.055
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