User manual - Tests (TEST)

u2-Prop Z Test

This test is used to compare the proportion of successes. The 2-Prop Z Test is applied to

normal distribution.

Z =

–

p(1 – p )

x1 : data value of sample 1

x2 : data value of sample 2

n1 : size of sample 1

n2 : size of sample 2

ˆp : estimated sample proportion

Perform the following key operation from the statistical data list.

3(TEST)

b(Z)

e(2-Prop)

p1 ................................. sample proportion test conditions (“G p2” specifies two-tail

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

sample 2, “> p2” specifies upper 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 2

x2 ................................. data value (x2 > 0 integer) of sample 1

n2 ................................. size (positive integer) of sample 2

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