1. To determine whether two categorical variables are independent, one should use the:
a. ANOVA test.
b. Tukey-Kramer multiple comparison procedure.
c. Chi-square test.
d. F-test.
2. If time series data exhibit a constant mean and constant variance, the time series is considered
a. nonlinear
b. stationary
c. no stationary
d. curvilinear
3. The mean return for a random sample of 33 mutual funds is 14.93 percent with a standard deviation of 9.57. Test the null hypothesis: H0: µ = 15% at α = 0.05.
a. Reject H0
b. Fail to Reject H0