Find the 95 confidence interval for the difference in the mean ...

[lilldybug07]

Find the 95 confidence interval for the difference in the mean costs of parking tickets in these two cities.
 
  A) 19.57  20.00
  B) 19.57  20.38
  C) 19.57  18.98
  D) 19.57  17.68

Question 2

In order for the chi-square test of independence to be valid, the expected frequency in each cell of the contingency table should be at least 1.
 
  Indicate whether the statement is true or false

[Chelseyj.hasty]

Answer to Question 1

B

Answer to Question 2

FALSE

[lilldybug07]

Thank you

[Chelseyj.hasty]

Happy to help you