MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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A company is testing the effectiveness of three new pills used to treat high blood pressure. 30
people with high blood pressure were selected. The 30 people were then divided into three
groups of 10 each. Each person in a subgroup was given one of these pills. The number of
points by which each person's blood pressure was reduced after one month of use is as follows:
PILL A
PILL B
7
15
21
17
16
14
16
14
21
17
15
PREHRANS
39
30
23
31
9
25
23
19
27
39
29
12
15
18
21
15
12
21
18
29
PILL C
Is there a significant difference in the ability of each of these drugs to reduce blood pressure?
(Use a .05 level of significance.)
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Transcribed Image Text:A company is testing the effectiveness of three new pills used to treat high blood pressure. 30 people with high blood pressure were selected. The 30 people were then divided into three groups of 10 each. Each person in a subgroup was given one of these pills. The number of points by which each person's blood pressure was reduced after one month of use is as follows: PILL A PILL B 7 15 21 17 16 14 16 14 21 17 15 PREHRANS 39 30 23 31 9 25 23 19 27 39 29 12 15 18 21 15 12 21 18 29 PILL C Is there a significant difference in the ability of each of these drugs to reduce blood pressure? (Use a .05 level of significance.)
3/3/2020 8:26:08 AM
Worksheet size: 10000 cells.
Welcome to Minitab, press F1 for help.
One-way ANOVA: PILL A, PILL B, PILL C
Source DE
SS
MS
Factor 2 533.4 266.7
Error 27 1132.9 42.0
Total 29 1666.3
R-Sq 32.01%
S6.478
N
Mean St Dev
Level
PILL A 10
PILL B 10
16.600 2.547
26.500 9.034
PILL C 10 19.000 6.146
Pooled StDev 6.478
P
F
6.36 0.005
R-Sq (adj) - 26.97%
Individual 95% CIs For Mean Based on
Pooled StDev
----
(----
------
15.0
---)
20.0
(----
-----)
25.0
------)
---+----
30.0
expand button
Transcribed Image Text:3/3/2020 8:26:08 AM Worksheet size: 10000 cells. Welcome to Minitab, press F1 for help. One-way ANOVA: PILL A, PILL B, PILL C Source DE SS MS Factor 2 533.4 266.7 Error 27 1132.9 42.0 Total 29 1666.3 R-Sq 32.01% S6.478 N Mean St Dev Level PILL A 10 PILL B 10 16.600 2.547 26.500 9.034 PILL C 10 19.000 6.146 Pooled StDev 6.478 P F 6.36 0.005 R-Sq (adj) - 26.97% Individual 95% CIs For Mean Based on Pooled StDev ---- (---- ------ 15.0 ---) 20.0 (---- -----) 25.0 ------) ---+---- 30.0
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