- Distribution is left skewed if tail is on the _____
- What are two categories of the critical values approach for tests of the population mean?
- Chant used to help remember for which study the calculated value has to be higher or lower (or equal to) then the critical value
- Test used for correlation study with nominal level data
- What distribution does SAMPLE alpha and beta follow
- Does covariance or correlation depend on units of measurement?
- what is more informative : confidence intervals or point estimate?
- Test used for correlation study with ordinal level data
- Test used for an independent measures experiment with nominal level data
- Test used for independent measures experiment with ordinal level data
- Test used for repeated measures or matched participant experiment with nominal level data
- Test used for repeated measures or matched participant experiment with ordinal level data
- Test used for independent measures experiment with Interval or Ratio level data
- Test used for repeated measures or matched participant experiment with interval or ratio level data
- example 10.5 what do you think is more important - to protect the right of Americans to own guns or to control gun ownership? when asked this question, 46% of all Americans said protecting the right to own guns is more important. the pew research center surveyed 1267 randomly selected Americans with at least a bachelors degree and found that 549 believed that protecting the right to own guns is more important. does this result suggest the proportion of Americans with at least a bachelors degree feel differently than the general American population when it comes to gun control? use the theta= 0.1 level of significance
- is a procedure, based on sample evidence and probability, used to test statement regarding of characteristic of one or more populations
- example 10.3 the Medco pharmaceutical company has just developed a new antibiotic for children. 2% of children taking competing antibiotics experiments headaches as a side effect. a researcher for the food and drug administration wishes to know is the percentage of children taking the new antibiotic who experience headaches as a side effect is more than 2%. the researcher conducts a hypothesis test with H0: p= 0.02 and H1: p > 0.02. suppose that the sample evidence indicates thata.) the null hypothesis is rejected. state the conclusion b.) the null hypothesis is not rejected. state the conclusion
- denoted H0, is a statement to be tested. is a statement of no change, no effect, or no difference and is assumed to be true until evidence indicates otherwise
- reality and conclusion chart for 4 outcomes
- denoted H1, is a statement that we are trying to find evidence to support