Chapter 8 and 9 Vocabulary

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