We survey a random sample of households in Philadelphia to test if less than

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