Across
- 1. Janice tested if her class’s proportion of males was the same as America’s proportion of males. She concluded that they were not different, but in reality, she was wrong. Janice made a type ____ error.
- 5. To increase the power of a test, you can either increase the alpha level, or increase the ____ (two words)
- 6. Greek letter that represents the probability of 3 Down occurring
- 9. Incorrectly rejecting the Null hypothesis
- 11. To find out if the Independent Sample Assumption was satisfied, you can multiply the sample size by this number
- 20. In the 2016/2017 season Lionel Messi scored 37 goals in 179 shot attempts in La Liga. Find the true proportion of goals. Construct a 90% confidence interval for the true proportion of goals scored (Messi has had more than 2,000 shots in La Liga). What assumption(s) is/are missed in this prompt?
- 21. What mechanic on a graphing calculator would one use to calculate the P-Value
- 24. p̂ symbol is used to represent the _____
- 25. If the alternate hypothesis is p ≠ a number, this is a ____ test
- 26. The first thing you type in your calculator when calculating standard error
- 27. If zero is on your confidence interval, you should ____ the null.
- 29. _____ condition states that the sample size must be less than 10% of the population
Down
- 1. Incorrectly failing to reject the Null Hypothesis
- 2. Power - The probability of being correct when rejecting the null - 1 _ Beta
- 3. What the C stands for in CLT
- 4. If the probability is lower than the alpha, you _ the null
- 7. The Critical Value when there’s 50% confidence, .25 tail probability, and 1 degree of freedom, for a t distribution of critical vals.
- 8. The formula p̂+/-MOE calculates the ____
- 10. ___ assumption states that the sample must be selected randomly
- 12. A survey conducted by a national research center asked a random sample of 1500 teenagers in the United States how often they use social media. From the sample, 83% answered that they use social media service every day. What type of test should be conducted?
- 13. Another word for alpha level: _____ level
- 14. When you multiply the z-score with the standard error, you get…
- 15. A Whitman student wondered if more teenagers liked the beginning of One Piece than they did the beginning of Naruto. To investigate he selected a random sample of 200 students at their school and showed them the first 5 episodes of each show. They expected approximately ½ of the students to prefer Naruto. What is the null hypothesis? H0: p = _
- 16. ____ condition states that both successes and failures must be at least 10
- 17. The ___ for a 95% confidence interval is 1.96
- 18. To reduce the probability of a type 1 error, reduce ____
- 19. If the alternate hypothesis is p>/< a number, this is a ____ test
- 22. First three letters of the three main assumptions
- 23. One ___ Z-Test
- 28. “If the p is _ reject that H0!”