6-5-8 Tests

u2-Prop Z Test

This test is used to compare the proportion of successes. The 2-PropZ Test is applied to the normal distribution.

 

 

 

x1

x2

 

 

 

x1

: data value of sample 1

Z =

 

 

n1

n2

 

 

x2

: data value of sample 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

n1

: size of sample 1

 

 

p(1– p )

 

1

+

1

 

 

 

 

 

n2

: size of sample 2

 

 

 

n2

 

 

 

 

 

 

n1

pˆ : estimated sample proportion

 

 

 

 

 

 

 

 

 

 

 

Perform the following key operation from the statistical data list.

3(TEST)

1(Z)

4(2-P)

p1 .................................

sample proportion test conditions (“G p2” specifies two-tail

 

test, “< p2” specifies one-tail test where sample 1 is smaller

 

than sample 2, “> p2” specifies one-tail test where sample 1

 

is greater than sample 2.)

x1 .................................

data value (x1 > 0 integer) of sample 1

n1 .................................

size (positive integer) of sample 1

x2 .................................

data value (x2 > 0 integer) of sample 2

n2 .................................

size (positive integer) of sample 2

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

list for storage of calculation results (None or List 1 to 26)

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

executes a calculation or draws a graph

After setting all the parameters, use c to move the highlighting to “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.

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