Guidelines for completing this assignment: . For any hypothesis tests, you must
ID: 2931015 • Letter: G
Question
Guidelines for completing this assignment: . For any hypothesis tests, you must use the critical value approach and 5-step procedure discussed in class. In order to receive credit, you must separately list each step in the hypothesis test: Step 1: State the null and alternative hypotheses Step 2: State the decision rule for rejecting the null hypothesis Step 3: Report the value of the test statistic Step 4: Evaluate the null hypothesis Step 5: State the practical conclusion to be drawn from the hypothesis test, in the context of the problem, in plain English. All requested confidence intervals must be in the correct final format (as discussed in class) and be fully interpreted in the context of the problem (i.e., in plain English) Make sure that your name and CSU ID # appears at the top of this sheetExplanation / Answer
Answer:
SS
DF
MS
F
TREATMENT
107.39754
3
35.79918
6.50
ERROR
132.22362857
24
5.50932
TOTAL
239.62117
27
Critical value of F (3,24) at 0.05 level =3.009
Calculated F=6.50 > 3.009 the critical value.
Ho is Rejected.
We conclude that 4the four coupon designs yield the same mean doller ales.
Bonferroni Cis
Design A
B
A-B
t*SE(A-B)
Lower
Upper
1
2
-4.16
3.6071663
-7.76717
-0.552833713
3
-0.203
3.6071663
-3.81017
3.404166287
4
-3.86
3.6071663
-7.46717
-0.252833713
2
3
3.957
3.6071663
0.349834
7.564166287
4
0.3
3.6071663
-3.30717
3.907166287
3
4
-3.657
3.6071663
-7.26417
-0.049833713
Design 1 significant from Design 2 and Design 4
Design 2 significant from Design 2
Design 3 significant from Design 4
we recommend the Design 1 which yields higher mean.
SS
DF
MS
F
TREATMENT
107.39754
3
35.79918
6.50
ERROR
132.22362857
24
5.50932
TOTAL
239.62117
27
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