AP Statistics Chapter 24 Notes
... A hypothesis test for the difference in the means of two independent groups tests the null hypothesis: ...
... A hypothesis test for the difference in the means of two independent groups tests the null hypothesis: ...
CHAPTER 4 Basic Probability and Discrete Probability Distributions
... exceeds critical value). We may decide this value of sample mean is too improbable under the null and reject the null, but this does not mean it is impossible. We could hang an innocent person. Type II Error: not rejecting a null that is, in fact, false. We may find an average weight of 370 grams a ...
... exceeds critical value). We may decide this value of sample mean is too improbable under the null and reject the null, but this does not mean it is impossible. We could hang an innocent person. Type II Error: not rejecting a null that is, in fact, false. We may find an average weight of 370 grams a ...
Document
... that the keys need very little pressure to make them respond. The manufacturer of keyboard 2 would like to claim that typing can be done faster using keyboard 2…A simple random sample of n = 30 teachers was selected from a population of high-school teachers attending a national conference. Each teac ...
... that the keys need very little pressure to make them respond. The manufacturer of keyboard 2 would like to claim that typing can be done faster using keyboard 2…A simple random sample of n = 30 teachers was selected from a population of high-school teachers attending a national conference. Each teac ...
Student`s t test, Inference for variances
... 1. Find the sampling distribution of the test statistic when is H0 true. 2. Locate the Critical Region in the tails (either left or right or both) of the sampling distribution of the test statistic when is H0 true. Whether you locate the critical region in the left tail or right tail or both tails d ...
... 1. Find the sampling distribution of the test statistic when is H0 true. 2. Locate the Critical Region in the tails (either left or right or both) of the sampling distribution of the test statistic when is H0 true. Whether you locate the critical region in the left tail or right tail or both tails d ...
