The ________ is a symmetric bell-shaped distribution that is useful for small sample testing.
A) F distribution
B) p distribution
C) t distribution
D) z distribution
E) chi-square distribution

Question

Quizplus · Accepted Answer

The t distribution is designed for small sample testing, and is a symmetric bell-shaped distribution. The z distribution is also symmetric and bell-shaped, but is intended for large sample sizes. The F distribution is used for testing variances, and the chi-square distribution is used for testing goodness of fit and independence. The p distribution is not a commonly used statistical distribution.

The ________ Is a Symmetric Bell-Shaped Distribution That Is Useful