Across
- 2. a statistic that provides an estimate of a population parameter
- 4. tells how close the estimate tends to be to the unknown parameter in repeated random sampling
- 5. this determines what confidence level is bringing calculated
- 6. the probability that the statistic would take a value as extreme as or more extreme than the one actually observed
- 9. the alternative hypothesis is considered this if it states that a parameter is larger that the null hypothesis value or that the parameter is smaller that the null value
- 11. if the p value is smaller than alpha we say the data is this
- 14. this gives the overall success rate of the method for calculating the confidence interval
- 15. the claim tested by a statistical test
- 17. this is said when we reject the null hypothesis when it is actually true
- 18. has a different shape than the standard normal curve: still symmetric with one peak at zero, but more are in the tails
- 19. this interval in used when the standard deviation of the population is unknown
Down
- 1. the claim about the population we are trying to find evidence for
- 3. the alternative hypothesis is considered this if the parameter is different from the null hypothesis value
- 7. the value the point estimator statistic from a sample
- 8. an interval calculated from the data, estimate plus or minus margin of error
- 10. this is when the standard deviation of a statistic is estimated from data
- 11. a formal procedure for comparing observed data with a claim whose truth we want to assess
- 12. this is said when we fail to reject the null hypothesis when it is false
- 13. certain conditions must be met to calculate a confidence interval: random, normal, and independent
- 16. the probability that the test will reject the null hypothesis at a chosen significance level when the specified alternative value of the parameter is true