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Open US_Crime-HW7 data. Test if West Virginia’s vehicle thefts are lower than Nebraska’s vehicle thefts on...

Open US_Crime-HW7 data. Test if West Virginia’s vehicle thefts are lower than Nebraska’s vehicle thefts on average. Answer questions 10 to 13. (Pick the closest answer)

10. What test did you perform? (4 points)

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

Open US_Crime-HW7 data. Test if Florida has more robberies than assaults on average. Answer questions 6 to 9. (Pick the closest answer)

6. What test did you perform? (4 points)

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

Open Wages-HW9 data. Test if there is a significant difference between men’s and women’s wages. Answer questions 2 to 5. (Pick the closest answer)

2. What test did you perform? (4 points)

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

Open Wages-HW9 data. Test if unmarried women’s wages is greater than married women’s wages on average. Answer questions 14 to 17. (Pick the closest answer)

14. What test did you perform? (4 points)

  • a. Regression
  • b. Two sided t-test
  • c. One sided t-test
Math   Statistics-And-Probability   
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Homework Answers

Answer #1

10. One sided t test because we want to compare two means and alternative hypothesis is directional.

  • c. One sided t-test

6. One sided t test because we want to compare two means and alternative hypothesis is directional.

  • c. One sided t-test

2. Two sided t test because we want to compare two means and alternative hypothesis is non-directional.

  • b. Two sided t-test

14. One sided t test because we want to compare two means and alternative hypothesis is directional.

  • c. One sided t-test
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