The net weights (in grams) of a sample of bottles filled by a machine manufactured by...
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: 17, 20, 19, 18, 21 and 19
Orno: 20, 22, 19, 23, 21, 24, 26 and 21
Testing the claim at the 0.0005 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.
4.221
4.597
4.716
4.318
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