lems for Section 1.1 EARNG THE BASICS Pre els Pre lems on 11.1 Si t the eity- As
ID: 3301191 • Letter: L
Question
lems for Section 1.1 EARNG THE BASICS Pre els Pre lems on 11.1 Si t the eity- As periment has a single factor with five groups and e seven values in each group a. How many of among-group variation? y degrees of freedom are there in determining the rees of freedom are there in determining the w many degrees of freedom are there in determining the to- a. b. within-group variation? c. chain Maga times 29.75 tal variation? 11.2 You are working with the same experiment as in Problem 11.1. in alf SSA-60 and SST = 210, what is SSW? in 188.83 What is MSA? c. What is MSW? d. What is the value of FSTAT 11.3 You sed on ce of a ou are working with the same experiment as in Problems L.l and 11.2. nstruct the ANOVA summary table and fill in all values in he table evel of significance, what is the upper-tail critical value from the F distribution? ue decision rule for testing the null hypothesis that al t is your statistical decision lue c. State the ru ave equal population meansExplanation / Answer
a) By combining the answers you got in part a) and b), the ANOVA summary will be:
b) At 0.05 significance level,
Critical value = 2.69
c) Decision Rule: Reject Ho if F > 2.69
d) Since F = 3 > 2.69, we reject Ho and hence, we have enough evidence to reject the claim that all five groups have equal population means.
Df SS Mean Square F Between Groups 5 - 1 = 4 60 60/4 = 15 15/5 = 3 Within Groups 34 - 4 = 30 210 - 60 = 150 150/30 = 5 Total 7*5 - 1 = 35 - 1 = 34 210Related Questions
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