Chapters 8-9 Crossword

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Across
  1. 1. The claim tested by a statistical test. The test is designed to assess the strength of the evidence against the null hypothesis. A statement of "no difference
  2. 5. An interval calculated from sample data, which has the general form estimate ± margin of error or, alternatively, statistic ± (critical value)(standard deviation of statistic).
  3. 6. The claim about the population that we are trying to find evidence for
  4. 7. The number of values that can vary in a stats calculation
  5. 9. The critical value is a factor used to compute the margin of error, as shown in the equations below
  6. 10. Statisticians use a confidence interval to express the degree of uncertainty associated with a sample statistic. A confidence interval is an interval estimate combined with a probability statement
  7. 11. is the sampling distribution of the t statistic
  8. 13. Measures how far a sample statistic diverges from what we would expect if the null hypothesis H0 were true, in standardized units.
  9. 16. The probability that the statistic would take a value as extreme as or more extreme than the one actually observed. The smaller it is, the stronger the evidence against H0 provided by the data
  10. 18. Occurs if H0 is not rejected when H0 is false.
  11. 19. When the value of a variable is determined by a chance event
  12. 20. The probability that the test will reject H0 at a chosen significance level α when the specified alternative value of the parameter is true.
Down
  1. 2. the P-value is smaller than alpha
  2. 3. The specific value of a point estimator
  3. 4. a formal procedure for comparing observed data with a claim who truth we want to access
  4. 8. Two events are independent when the occurrence of one does not affect the probability of the occurrence of the other
  5. 12. Tells how close the estimate tends to be to the unknown parameter in repeated random sampling.
  6. 14. When the standard deviation of a statistic is estimated from data, the result is the standard error of the statistic
  7. 15. Occurs if H0 is rejected when H0 is true.
  8. 17. numbers that describe a population