APFIVE One-Proportion Z-Test Conditions
A researcher wants to test whether the proportion of adults in a city who support a new public transportation initiative is greater than 0.40. Which of the following conditions must be verified before conducting a one-sample z-test for a population proportion?
A
np₀ ≥ 10 and n(1-p₀) ≥ 10
B
The standard deviation of the population must be known
C
The population must be normally distributed
D
The sample size must be at least 30
Question Leaderboard
Not enough data yet to show leaderboard.