Mathematics, 25.02.2020 22:00 denym58
Three assembly lines are used to produce a certain component for an airliner. To examine the production rate, a random
sample of six hourly periods is chosen for each assembly line and the number of components produced during these
periods for each line is recorded. The output from a statistical software package is:
Summary
Groups Count Sum Average Variance
Line A 6 250 41.66667 0.266667
Line B 6 260 43.33333 0.666667
Line C 6 249 41.5 0.7
ANOVA
Source of Variation SS df MS F p-value
Between Groups 12.33333 2 6.166667 11.32653 0.001005
Within Groups 8.166667 15 0.544444
Total 20.5 17
a. Use a .01 level of signicance to test if there is a difference in the mean production of the three assembly lines.
b. Develop a 99 percent condence interval for the difference in the means between Line B and Line C.
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Three assembly lines are used to produce a certain component for an airliner. To examine the product...
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