2. A production line is designed on the assumption that the time difference between two operations is 5 minutes. Suppose two independent samples for the two operations yield th following results: Operation 1 N1 =80 ĩ =9.5 min S1 =0.7 min At a level of significance 0.05, test the hypothesis that the time difference between two Operation 2 n1 =60 ĩz = 4.7 min S2 =0.9 min operations is 5 minutes.

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2. A production line is designed on the assumption that the time difference between two
operations is 5 minutes. Suppose two independent samples for the two operations yield the
following results:
Operation 1
n1 =80
x1 =9.5 min
s1 =0.7 min
At a level of significance 0.05, test the hypothesis that the time difference between two
operations is 5 minutes.
Operation 2
n1 =60
ĩ2 = 4.7 min
S2 =0.9 min
Transcribed Image Text:2. A production line is designed on the assumption that the time difference between two operations is 5 minutes. Suppose two independent samples for the two operations yield the following results: Operation 1 n1 =80 x1 =9.5 min s1 =0.7 min At a level of significance 0.05, test the hypothesis that the time difference between two operations is 5 minutes. Operation 2 n1 =60 ĩ2 = 4.7 min S2 =0.9 min
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