Sharp EL-9900 User Manual

•

µ

0

 indicates the hypothesis mean, 

σ indicates the population

standard deviation, x indicates the sample mean and n

indicates the sample size. (“n” is a positive integer.)

4. Enter the appropriate value in each field.

5. Press 

@ h.

Answers will be displayed on

the screen, where z indi-

cates the test statistic and p

indicates the p value of the

test.

Tests the equality of two sample means, 

µ

1

 and 

µ

2

.

Test 

µ

1

 > 

µ

2

 where x

_

1

 = 77.3, 

σ

1

 = 3.4, n

1

 = 30, and x

_

2

 = 75.2, 

σ

2

 =

2.8, n

2

 = 20.

Set the input method to value input mode

1. Press 

# S E 1 7 E.

2. Press 

S E 0 9.

The parameter input screen will appear.

3. Enter the appropriate value

into each field.

4. Press 

@ h.

Answers will be displayed on

the screen.