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Statistics in Research II - Examination 2 | STAT 652, Study notes of Statistics
Exam 2 Material Type: Notes; Class: STAT IN RESEARCH II; Subject: STATISTICS; University: Texas A&M University; Term: Unknown 1989;
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1 B
2 C
2294.4/2=1147.
3 E
Reject null hypothesis if (^) F > F 0. 05 , 3 , 6 = 4. 76
4 D
1. 9723 4. 76
( 26561. 1 12048. 6 2294. 4 )/ 6
12048. 6 / 3
= < 0. 05 , 3 , 6 =
− −
F = F so reject H 0
5 B
( 3 4 1 ) 12218. 1 / 6
2294. 4 3 3 12218. 1 / 6
( , ) = <
× − ×
+ × ×
RERCBCR =
6 A
7 B
8 D
9 C
10 C
TSS = 52317000
3 *( 2093. 3 4240 ) 3 *( 6386. 667 4240 ) 27649067
2 2 SST = − + − =
SSE = TSS − SST = 24667933
MST = 27649067
MSE =24667933/4 = 6166983
= = 4.
MSE
MST
F
F < F 0. 05 , 1 , 4 = 7.7086 So failed to reject the null hypothesis.
11 B
12 A
13 D
0. 001 < F 3 , 6 ( 19. 18 )< 0. 01
- B
15 A
5 * 85. 979
136. 0625 29. 5625 3 * 85. 979
( , ) = <
+ +
RELSCR =
16 E
17 C
18 E
19 C
20 A
- F = 4 16 > F 0 05 , 3 , 24 = 3 01 so reject H