We survey a random sample of households in Philadelphia to test if less than 50% of families are families where both parents are working full time.
A)
Z-test about a proportion with a two-sided alternative
B)
Regression
C)
T-test about a mean with a two-sided alternative
D)
T-test about a mean with a one-sided alternative
E)
Z-test about a proportion with a one-sided alternative
F)
Chi-square test of independence
G)
One-way Analysis of Variance (ANOVA
