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Pr[Z> z
Reject the null hypothesis, H
H
: p
-p
<p
.
1
1
2
0
Hypothesis testing using pre-programmed features
The calculator provides with hypothesis testing procedures under application
5. Hypoth. tests.. can be accessed by using ‚Ù—— @@@OK@@@.
As with the calculation of confidence intervals, discussed earlier, this program
offers the following 6 options:
These options are interpreted as in the confidence interval applications:
1. Z-Test: 1 µ.: Single sample hypothesis testing for the population mean, µ,
with known population variance, or for large samples with unknown
population variance.
2. Z-Test: µ1−µ2.: Hypothesis testing for the difference of the population
means, µ
- µ
, with either known population variances, or for large
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: p1− p2.: Hypothesis testing for the difference of two proportions,
p
-p
, for large samples with unknown population variances.
1
2
5. T-Test: 1 µ.: Single sample hypothesis testing for the population mean, µ,
for small samples with unknown population variance.
6. T-Test: µ1−µ2.: Hypothesis testing for the difference of the population
means, µ
- µ
, for small samples with unknown population variances.
1
2
) = α, or Φ(z
] = 1-Φ(z
α
α
, if z
>z
, and H
: p
α
0
0
1
) = 1- α,
α
-p
> p
, or if z
< - z
, and
α
1
2
0
0
Page 18-43
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