The data below represents the overall miles per gallon MPG o
The data below represents the overall miles per gallon (MPG) of 2008 SUVs priced under $30,000. Complete parts (a) and (b).
a. Construct a 90% confidence interval estimate for the population mean miles per gallon of 2008 priced under $30,000 SUVs assuming a normal distribution.
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(Round to two decimal places as needed.)
b. Interpret the interval constructed in (a). Choose the correct answer below.
A.With 90% confidence, the mean miles per gallon in the population of 2008 SUVs is somewhere in the interval.
B.With 90% confidence, the mean miles per gallon in the sample of 2008 SUVs is somewhere in the interval.
C.With 90% confidence, the mean miles per gallon in the population of 2008 SUVs is the sample mean.
D.With 90% confidence, the mean miles per gallon in the sample of 2008 SUVs is the population mean.
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