Unformatted text preview: zing Hypothesis Testing Example: Mean body temperature
A bootstrap distribution is shown for mean body
temperature. http://www.wiley.com/college/lock/0470601876/statkey/bootst VISUALIZING CONFIDENCE INTERVALS and HYPOTHE Checkpoint 2 and Checkpoint 3
Visualizing CONFIDENCE INTERVALS
Visualizing Hypothesis Testing Example: Mean body temperature
A bootstrap distribution is shown for mean body
temperature.
The bootstrap distribution is centered around the sample
¯
statistic, x = 98 . 26, with of SE = 0 .109,
a 95% conﬁdence interval is Statistic ± 2 · SE = 98.26 ±
2 · 0.109 = ( 98.042, 98.478 )
A 95% conﬁdence interval can also be found as the
middle 95% of bootstrap statistics, shown in the ﬁgure to
be (98.044, 98.476).
We are 95% conﬁdent that mean body temperature is
between 98.04 ◦ F and 98.48 ◦ F. VISUALIZING CONFIDENCE INTERVALS and HYPOTHE Checkpoint 2 and Checkpoint 3
Visualizing CONFIDENCE INTERVALS
Visualizing Hypothesis Testing Visualizing HYPOTHESIS TESTING VISUALIZING CONFIDENCE INTERVALS and HYPOTHE Checkpoint 2 and Checkpoint 3
Visualizing CONFIDENCE INTERVALS
Visualizing Hypothesis Testing Hypothesis Tests
Are used to investigate claims about population
parameters.
Ex: A new claim about the Mean Body Temperature
(MBT)....
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 Spring '08
 Ioudina
 Statistics, Hypothesis testing, Statistical hypothesis testing

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