HP 50g User Manual page 165

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
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