Question 1011272: To compare two kinds of bumper guards, 6 of each kind
were mounted on a certain kind of compact car. Then
each car was run into a concrete wall at 5 miles per
hour and the following are the costs of repairs (in
memory terms) be able to assert with 90% confidence
that the sample mean is off by at most 10 days?
Bumper guard 1 107 148 123 165 102 119
Bumper guard 2 134 115 112 151 133 129
Use the 0.01 level of significance to test the difference
between the two sample means is significant.
Answer by ikleyn(52781)   (Show Source):
You can put this solution on YOUR website! .
We, in this forum, are so happy to get so many so boring copy-and-paste problems.
Yes, really, almost infinite row.
People usually have the sense of proportion, which helps them to make suggestions what is enough
and what is too much.
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