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Lecture_3_Visualizing_Confidence_Intervals_and_Hypothesis_Testing

# Intervals visualizing hypothesis testing example mean

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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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