AP STATS UNIT 8 and 9 INTERPRETS

Interpret Confidence Interval

We are ___% confident that the interval from ____to____ captures the true (context)

Interpret Confidence Level

If we take many, many samples and calculate a confidence interval for each, about ____ % of them will capture the true _____

Interpret P value

Assming Ho is true (p=__), there is a (p value) probability of getting a p^ of ____ or more extreme purely by chance

Concluding hypothesis test

if lower than alpha—> Because___<alpha, we reject the null hypothesis (___) and we do have convincing evidence for Ha (context)

If higher than alpha—> Because ___ > alpha, we fail to reject the null hypothesis (___) and we do not have convincing evidence for Ha (context)

Interpret Type 1 Error

“If (Ho) there is a (alpha) probability of incorrectly finding convincing evidence that (Ha)”

the null hypothesis (context) is true, but we find convincing evidence for Ha (context)

Interpret Type 2 Error

“If (Ha), there is a (1-power) probability of not finding convincing evidence that (Ha)”

The alternative hypothesis (context) is true, but we do not find convincing evidence for Ha (context)

Interpret Power

“If Ha is true (specific value in context), there is a (power) probability of finding convincing evidence to reject Ho (context)”