he data below was collected from manufacturer advertisements of their vehicles horsepower (x) and highway gas mileage (mpg=y). Use this data to answer the following questions. horsepower 146 250 340 350 390 190 220 mpg 33 28 15 17 11 35 42 1. Find the p-value to determine if there is a linear correlation between horsepower and highway gas mileage (mpg). Record the p-value below. Round to four decimal places. p-value== 2. Is there a linear correlation between horsepower and highway gas mileage (mpg)? 3. If there is a linear correlation, write the correlation coefficient below. Otherwise, leave it blank. Round your final answer to four decimal places. Be careful with your sign.
The data below was collected from manufacturer advertisements of their vehicles horsepower (x) and highway gas mileage (mpg=y). Use this data to answer the following questions.
| horsepower | 146 | 250 | 340 | 350 | 390 | 190 | 220 |
|---|---|---|---|---|---|---|---|
| mpg | 33 | 28 | 15 | 17 | 11 | 35 | 42 |
1. Find the p-value to determine if there is a
p-value==
2. Is there a linear correlation between horsepower and highway gas mileage (mpg)?
3. If there is a linear correlation, write the
r=r=
4. If there is a linear
ˆy=y^=
5. Using the data shown above, predict the the highway gas mileage (mpg) for a car that has a horsepower of 225. Round your final answer to two decimal places.
6. If there is a linear correlation, what percentage of variation in highway gas mileage (mpg) can be explained by horsepower? If there is not a linear correlation, leave it blank. Round your final answer to two decimal places.
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