b:head_first_statistics:constructing_confidence_intervals
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
b:head_first_statistics:constructing_confidence_intervals [2019/12/10 10:20] – [Just one more problem...] hkimscil | b:head_first_statistics:constructing_confidence_intervals [2023/11/15 08:24] (current) – [Four steps for finding confidence intervals] hkimscil | ||
---|---|---|---|
Line 10: | Line 10: | ||
Rather than specify an exact value, we can specify two values we expect flavor duration to lie between. | Rather than specify an exact value, we can specify two values we expect flavor duration to lie between. | ||
- | [{{:b: | + | <WRAP group> |
+ | <WRAP 25% column> | ||
+ | $\Large{P(a < \mu < b) = 0.95} $ | ||
+ | </ | ||
+ | <WRAP 50% column> | ||
+ | As an example, you may want to choose a and b so that there’s a 95% chance of the interval containing the population mean. Finding the exact spot of a and b is the problem we are trying to solve. | ||
+ | </ | ||
+ | </ | ||
The far side of each end, (a, b) is called a **// | The far side of each end, (a, b) is called a **// | ||
Line 99: | Line 106: | ||
* 따라서 위의 경우는 95%에 해당하는 probability는 | * 따라서 위의 경우는 95%에 해당하는 probability는 | ||
* $P(-2 < z < 2) = .95$ | * $P(-2 < z < 2) = .95$ | ||
- | * $P(-2 < \dfrac {X - \overline{X}}{sd} < 2) = .95$ | + | * $P(-2 < \dfrac {\overline{X} |
* 이렇게 계산을 하면 | * 이렇게 계산을 하면 | ||
* $P(\overline{X} -1 < \mu < \overline{X} + 1) = .95 $ | * $P(\overline{X} -1 < \mu < \overline{X} + 1) = .95 $ |
b/head_first_statistics/constructing_confidence_intervals.1575940819.txt.gz · Last modified: 2019/12/10 10:20 by hkimscil