The table provides summary statistics on highway fuel economy of cars manufactured in 2012 (from Exercise 5.32). Use these statistics to calculate a 98% confidence interval for the difference between average highway mileage of manual and automatic cars, and interpret this interval in the context of the data. Hwy MPG, Automatic Hwy MPG, Manual Mean 22.92 27.88 SD 5.29 5.01 n 26 26 lower bound: mpg(please round to two decimal places) upper bound: mpg(please round to two decimal places) Interpret your confidence interval in the context of the problem: We can be 98% confident that the difference in average highway mileage of manual and automatic cars is contained within our confidence interval 98% of manual and automatic cars will have a difference in highway mileage that falls within our confidence interval We can be 98% confident that our confidence interval contains the difference in average highway mileage of the cars in our sample is contained within our confidence interval Does your confidence interval provide significant evidence for a difference in the highway fuel efficiency of automatic versus manual cars? Explain. no, since 0 is not contained within our confidence interval no, since negative highway mileage doesn't make sense yes, since highway mileage cannot be negative yes, since 0 is not contained within our confidence interval

The table provides summary statistics on highway fuel economy of cars manufactured in 2012 (from Exercise XXXXXXXXXXUse these statistics to calculate a 98% confidence interval for the difference...

The table provides summary statistics on highway fuel economy of cars manufactured in 2012 (from Exercise 5.32). Use these statistics to calculate a 98% confidence interval for the difference between average highway mileage of manual and automatic cars, and interpret this interval in the context of the data.

	Hwy MPG, Automatic	Hwy MPG, Manual
Mean	22.92	27.88
SD	5.29	5.01
n	26	26

lower bound: mpg(please round to two decimal places)

upper bound: mpg(please round to two decimal places)

Interpret your confidence interval in the context of the problem:

We can be 98% confident that the difference in average highway mileage of manual and automatic cars is contained within our confidence interval

98% of manual and automatic cars will have a difference in highway mileage that falls within our confidence interval

We can be 98% confident that our confidence interval contains the difference in average highway mileage of the cars in our sample is contained within our confidence interval

Does your confidence interval provide significant evidence for a difference in the highway fuel efficiency of automatic versus manual cars? Explain.

no, since 0 is not contained within our confidence interval

no, since negative highway mileage doesn't make sense

yes, since highway mileage cannot be negative

yes, since 0 is not contained within our confidence interval

Jun 01, 2022

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The table provides summary statistics on highway fuel economy of cars manufactured in 2012 (from Exercise XXXXXXXXXXUse these statistics to calculate a 98% confidence interval for the difference...

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