Question: Question Upload CARS data. SETUP: It is believed that Jaguars' Highway mileage is above 20 mpg. Given the data your job is to confirm or

Question

Upload CARS data. SETUP: It is believed that Jaguars' Highway mileage is above 20 mpg. Given the data your job is to confirm or disprove this belief. (CAREFULL: sort the data in order to extract the needed information).

5. What test/procedure did you perform?

  • a. One-sided t-test
  • b. Two-sided t-test
  • c. Regression
  • d. Confidence interval

6. What is the P-value/margin of error?

  • a. 0.161902527
  • b. 1.443714665
  • c. 6.149555
  • d. 8.065421
  • e. None of these

7. Statistical Interpretation

  • a. Since P-value is very small we are confident that the average mpg is above 20.
  • b. Since P-value is large we cannot claim that the averages are different.
  • c. Since P-value is very small we are confident that the slope of regression line is not zero.
  • d. None of these.

8. Conclusion

  • a. Yes, I am confident that the above claim is correct.
  • b. No, we cannot claim that the above claim is correct.

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