Across
- 6. an interval calculated from the data, which has the form: estimate ± margin of error
- 8. the alternative hypothesis is ___ if it states the parameter is different from the null hypothesis value
- 9. the ___ of a test against a specific alternative is the probability that the test will reject Ho at a chosen significance level ∝ when the specified alternative value of the parameter is true
- 11. depends both on the confidence level C and the sampling distribution of the statistic.
- 14. tells how close the estimate tends to be to the unknown parameter
- 17. the claim about the population that we are trying to find evidence for
- 18. the smaller the ___, the stronger the evidence against the null hypothesis provided by the data
- 19. if we fail to reject Ho when Ho is false, we have committed a ___ error
Down
- 1. before calculating a confidence interval for µ or p, there are three important ___ you should check
- 2. __= n-1
- 3. a statistic that provides an estimate of a population parameter
- 4. the alternative hypothesis is ___ if it states that a parameter is larger than the null hypothesis value or if it states that the parameter is smaller than the null value
- 5. if the P-value is smaller than alpha, we say that the data are ___ at level ∝
- 7. measures how far a sample statistic diverges from what we would expect if the null hypothesis were true, in standardized units.
- 9. "best guess" at the value of an unknown parameter
- 10. if we reject Ho when Ho is true, we have committed a ___ error
- 12. in C% of all possible samples, the method would yield an interval that captures the true parameter value
- 13. the claim tested by a statistical test, a statement of "no difference"
- 15. an inference procedure is called ___ if the probability calculations involved in that procedure remain fairly accurate when a condition for using the procedure is violated.
- 16. when the standard deviation of a statistic is estimated from data, the result is called the ___ of the statistic.