Sharp el-9950 - Page 175

174
Chapter 8: Statistics & Regression Calculations
•
µ
0
indicates the hypothesis mean,
s
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
indicates the test statistic and
p indicates the p value of the
test.
09 Ztest2samp Tests the equality of two sample means,
µ
1
and
µ
2
.
Example
Test
µ
1
>
µ
2
where x
_
1
= 77.3,
s
1
= 3.4, n
1
= 30, and x
_
2
= 75.2,
s
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.