1-2-7

Tests (TEST)

u1-Prop Z Test

This test is used to test for an unknown proportion of successes. The 1-PropZ Test is applied to the normal distribution.

 

 

 

x

– p0

p0 : expected sample proportion

Z =

 

 

n

n : size of sample

 

 

 

 

 

 

p0 (1– p0)

n

Perform the following key operations from the statistical data list.

3(TEST) b(Z) d(1-Prop)

Prop ............................

sample proportion test conditions (“Gp0” specifies two-tail

 

test, “< p0” specifies lower one-tail test, “> p0” specifies upper

 

one-tail test.)

p0 .................................

expected sample proportion (0 < p0 < 1)

x ..................................

sample value (x >0 integer)

n ..................................

size of sample (positive integer)

Save Res .....................

list for storage of calculation results (None or List 1 to 20)

Execute .......................

executes a calculation or draws a graph

After setting all the parameters, align the cursor with [Execute] and then press one of the function keys shown below to perform the calculation or draw the graph.

• 1(CALC) ... Performs the calculation.

• 6(DRAW) ... Draws the graph.

Calculation Result Output Example

PropG0.5 ....................

direction of test

z ...................................

z score

p ..................................

p-value

pˆ ..................................

estimated sample proportion

n ..................................

size of sample

#[Save Res] does not save the Prop condition in line 2.

20011101