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Chapter 12: Hypothesis Tests – Large Samples
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Figure 12- 10:
Experimental Display for Sampling from
a population with mean µ and standard
deviation
Also for Case II, the distribution need not be normally distributed but the
sample size should be large (
> 30).
Summary of Hypothesis Tests
(a) Right –tailed (one-tailed) Test
(where
is a specified proportion value)
:
̅
√ ⁄
or
̅
√ ⁄
for
unknown and
30
: For a specified significance level
, reject the null hypothesis
if the computed test statistic value
is greater than
.
Conclusion
: ……….