Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2027 exam
Verified for the 2027 exam•Written by the Fiveable Content Team • Last updated August 2025
Definition
The standardized test statistic calculated as (p̂ - p₀)/√[p₀(1-p₀)/n] that measures how many standard errors the sample proportion is from the hypothesized population proportion.