Question

In: Statistics and Probability

Carlson Mining, Inc. has 12 large pumps that pump water from the mines it operates. Management...

Carlson Mining, Inc. has 12 large pumps that pump water from the mines it operates.
Management has been concerned lately about the amount of money required to
repair malfunctioning pumps. These costs are sums over and above the amounts
spent for routine maintenance. When asked what factors they thought might affect
the mean monthly repair costs, employees suggested the age of the pumps and the
number of hours of operation. The following information was collected.
Choose the relevant Summary Output to answer the questions. Note that the
mean monthly repair costs are in dollars, so when questions ask about repair
costs, make sure that your answers reflect that.
Mean Weekly Hours of Operation over Past Year Age of Pump at First of Year (months) Mean Monthly Repair Costs over Past Year
28 80 $1,049
26 48 $1,095
15 27 $882
12 2 $447
16 13 $715
21 55 $542
13 30 $415
21 35 $454
16 36 $495
12 13 $370
18 28 $448
18 49 $509
• What is your pvalue?
• Did you reject or not reject H0?
• The mean monthly repair costs (are / are not not) related to the age of the pumps.
The linear relationship between the mean monthly repair costs and the age of the
pumps is (weak / moderate / strong / perfect).

Solutions

Expert Solution

I have consider x is Age of Pump at First of Year (months ) and

y is Mean Monthly Repair Costs over Past Year

also i have calculated by using SPSS


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