13-14 Inferential Statistics and Distributions
8313INFE.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:47 PM Printed: 02/19/01 1:38 PM
Page 14 of 36
1.PropZTest (one-proportion z test; item 5) computes a test
for an unknown proportion of successes (prop). It takes as
input the count of successes in the sample x and the count
of observations in the sample n. 1.PropZTest tests the null
hypothesis H0: prop=p0 against one of the alternatives
below.
• Ha: propƒp0 (prop:ƒp0)
• Ha: prop<p0 (prop:<p0)
• Ha: prop>p0 (prop:>p0)
Input:
,
Calculated results:
,
Drawn results:
)1-PropZTest