Table Q2 shows the amount of weight losses of certain machine parts (in milligrams) due to friction, when 3 different lubricants were used under controlled conditions: Table Q2 Amount of weight losses Lubricant Weight losses (in milligrams) A 12.2 11.8 13.1 11.0 3.9 4.1 10.3 8.4 10.9 5.7 13.5 9.4 11.4 15.7 10.8 14.0 12.7 19.9 13.6 11.7 18.3 14.3 22.8 20.4 (a) Does the type of lubricant affect the mean weight losses of that particular parts? Use a = 0.01. (b) Find a 95% confidence interval on the mean weight losses if lubricant A is in used?
Table Q2 shows the amount of weight losses of certain machine parts (in milligrams) due to friction, when 3 different lubricants were used under controlled conditions: Table Q2 Amount of weight losses Lubricant Weight losses (in milligrams) A 12.2 11.8 13.1 11.0 3.9 4.1 10.3 8.4 10.9 5.7 13.5 9.4 11.4 15.7 10.8 14.0 12.7 19.9 13.6 11.7 18.3 14.3 22.8 20.4 (a) Does the type of lubricant affect the mean weight losses of that particular parts? Use a = 0.01. (b) Find a 95% confidence interval on the mean weight losses if lubricant A is in used?
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Table Q2 shows the amount of weight losses of certain machine parts (in milligrams) due to
friction, when 3 different lubricants were used under controlled conditions:
Table Q2 Amount of weight losses
Lubricant
Weight losses (in milligrams)
A
12.2
11.8
13.1
11.0
3.9
4.1
10.3
8.4
B
10.9
5.7
13.5
9.4
11.4
15.7
10.8
14.0
C
12.7
19.9
13.6
11.7
18.3
14.3
22.8
20.4
(a)
Does the type of lubricant affect the mean weight losses of that particular parts? Use
a = 0.01.
(b) Find a 95% confidence interval on the mean weight losses if lubricant A is in used?
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