Suppose we are interested in comparing domestic and foreign cars. The following data is provided: What...

Suppose we are interested in comparing domestic and foreign cars. The following data is provided:
1. What is the 99% confidence interval for the difference between the average for domestic and foreign?
2. What is the test statistic for the difference for domestic and foreign?
3. What is the p-value?

Please show all formulas and steps to resolve questions.

Gender	Domestic	Foreign
Sample Size	20	22
Average MPG	20.7	24.94
Sample Standard Deviation	2.86	4.86

Solutions

Expert Solution

The p-value is p = P(t>-3.401) = 0.0015

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orchestra answered 1 year ago

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