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2. Z-Test:
.: Hypothesis testing for the difference of the population
means,
-
1
2
samples with unknown population variances.
3. Z-Test: 1 p.: Single sample hypothesis testing for the proportion, p, for
large samples with unknown population variance.
4. Z-Test: p
p .: Hypothesis testing for the difference of two proportions,
p
-p
, for large samples with unknown population variances.
1
2
5. T-Test: 1 .: Single sample hypothesis testing for the population mean,
, for small samples with unknown population variance.
6. T-Test:
.: Hypothesis testing for the difference of the population
means,
-
1
2
Example 1 – For
the hypothesis H
0
Press ‚Ù——@@@OK@@@ to access the confidence interval feature in the
calculator. Press @@@OK@@@ to select option 1. Z-Test: 1 .
Enter the following data and press @@@OK@@@ :
You are then asked to select the alternative hypothesis:
150. Then, press @@@OK@@@ . The result is:
Select
, with either known population variances, or for large
, for small samples with unknown population variances.
= 150,
= 10, x = 158, n = 50, for
0
:
=
, against the alternative hypothesis, H
0
= 0.05, test
:
.
1
0
Page 16-10

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