Mathematics, 10.01.2020 06:31 madisonwr
The net weights (in grams) of a sample of bottles filled by a machine manufactured by edne, and the net weights of a sample filled by a similar machine manufactured by orno, inc., are:
edne 8 7 6 9 7 5
orno 10 7 11 9 12 14 9 8
testing the claim at the 0.05 level that the mean weight of the bottles filled by the orno machine is greater than the mean weight of the bottles filled by the edne machine, what is the critical value? assume equal standard deviations for both samples.
a. +2.179
b. +2.145
c. +1.782
d. +1.761
Answers: 2
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