Multiple Choice
Nationwide Insurance would like to perform a chi- square test to investigate whether a difference exists in the proportion of male and female teenagers who text while they drive. A random sample of 80 male teenagers found that 50 indicated they texted while driving. A random sample of 120 female teenagers found that 65 indicated they texted while driving. The chi- square critical value using α = 0.5 is ______ .
A) 5.991
B) 2.706
C) 3.841
D) 7.815
Correct Answer:

Verified
Correct Answer:
Verified
Q3: When using the chi- square hypothesis test
Q4: The _ frequencies refer to the frequencies
Q5: Nationwide Insurance would like to perform a
Q6: When the chi- square test statistic is
Q7: For a chi- square test of independence,
Q9: When testing for a normal distribution with
Q10: Nationwide Insurance would like to perform a
Q11: When testing for a normal distribution with
Q12: The chi- square test for independence is
Q13: When performing a hypothesis test to compare