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Mathematics, 23.12.2019 19:31 peterradu47781

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: summarygroups count sum average varianceline a 6 250 41.7 0.27line b 6 260 43. 0.7line c 6 249 41.5 0.7 anovasource of variation ss df ms f p-valuebetween groups 12. 2 6. 17 11.32653 0.001005within groups 8.17 15 0.5total 20.467 17a. use a .01 level of significance to test if there is a difference in the mean production of the three assembly lines. b. develop a 99 percent confidence interval for the difference in the means between line b and line c.

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