Question

5.7.1. A study was conducted to compare two different procedures for assembling components. Both procedures were implemented and run for a month to allow employees to learn each procedure. Then each was observed for 10 days with the following results. Values are number of components assembled per day. Procedure I 115 10 113 64 104 97 114 96 87 93 Procedure II 86 99 100 78 97 111 102 94 88 99 Construct a 98% confidence interval for the difference in the mean number of components assembled by the two methods. Assume that the data for each procedure are from approximately normal populations with a common variance. Interpret the result

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Answer #1

Here we have data;

Producer1 Producer2
115 86
101 99
113 100
64 78
104 97
97 111
114 102
96 94
87 88
93 99

S235.6 - 87-1S6 Critical vu: 2 Confidine e intervol n, n2 | 98. ー 3± ț8y.ogl -18/ . Ogl )187.091

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