Statistics: Informed Decisions Using Data (5th Edition)
5th Edition
ISBN: 9780134133539
Author: Michael Sullivan III
Publisher: PEARSON
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Chapter 8.1, Problem 16AYU
(a)
To determine
The sampling distribution of x ¯
(b)
To determine
The probability
(c)
To determine
The probability
(d)
To determine
The probability that the value of the sample mean x ¯
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Business discuss
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I just need to know why this is wrong below:
What is the test statistic W? W=5 (incorrect)
and
What is the p-value of this test? (p-value < 0.001-- incorrect)
Use the Wilcoxon signed rank test to test the hypothesis that the median number of pages in the statistics books in the library from which the sample was taken is 400. A sample of 12 statistics books have the following numbers of pages
pages
127
217
486
132
397
297
396
327
292
256
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272
What is the sum of the negative ranks (W-)? 75 What is the sum of the positive ranks (W+)? 5What type of test is this? two tailedWhat is the test statistic W? 5 These are the critical values for a 1-tailed Wilcoxon Signed Rank test for n=12
Alpha Level
0.001
0.005
0.01
0.025
0.05
0.1
0.2
Critical Value
75
70
68
64
60
56
50
What is the p-value for this test? p-value < 0.001
Chapter 8 Solutions
Statistics: Informed Decisions Using Data (5th Edition)
Ch. 8.1 - 1. The ________ ________ of the sample mean, , is...Ch. 8.1 - Prob. 2AYUCh. 8.1 - 3. The standard deviation of the sampling...Ch. 8.1 - 4. True or False: The distribution of the sample...Ch. 8.1 - Prob. 5AYUCh. 8.1 - Prob. 6AYUCh. 8.1 - 7. A simple random sample of size n = 10 is...Ch. 8.1 - 8. A simple random sample of size n = 40 is...Ch. 8.1 - In Problems 9–12, determine and from the given...Ch. 8.1 - Prob. 10AYU
Ch. 8.1 - In Problems 9–12, determine and from the given...Ch. 8.1 - Prob. 12AYUCh. 8.1 - 13. Answer the following questions for the...Ch. 8.1 - Prob. 14AYUCh. 8.1 - 15. A simple random sample of size n = 49 is...Ch. 8.1 - Prob. 16AYUCh. 8.1 - 17. A simple random sample of size n = 12 is...Ch. 8.1 - Prob. 18AYUCh. 8.1 - 19. Gestation Period The length of human...Ch. 8.1 - 20. Upper Leg Length The upper leg length of 20-...Ch. 8.1 - 21. Reading Rates The reading speed of second...Ch. 8.1 - 22. Old Faithful The most famous geyser in the...Ch. 8.1 - 23. Rates of Return in Stocks The S&P 500 is a...Ch. 8.1 - Prob. 24AYUCh. 8.1 - 25. Oil Change The shape of the distribution of...Ch. 8.1 - 26. Time Spent in the Drive-Through The...Ch. 8.1 - 27. Insect Fragments The Food and Drug...Ch. 8.1 - Prob. 28AYUCh. 8.1 - 29. Watching Television The amount of time...Ch. 8.1 - Prob. 30AYUCh. 8.1 - 31. Sampling Distributions The following data...Ch. 8.1 - Prob. 32AYUCh. 8.1 - 33. Putting It Together: Playing Roulette In the...Ch. 8.1 - Prob. 34AYUCh. 8.1 - 35. State the Central Limit Theorem.
Ch. 8.1 - Prob. 36AYUCh. 8.1 - Prob. 37AYUCh. 8.1 - Prob. 38AYUCh. 8.1 - Prob. 39AYUCh. 8.1 - 40. Sleepy Suppose you want to study the number of...Ch. 8.1 - 41. Sleepy Again Suppose you want to study the...Ch. 8.1 - Prob. 42AYUCh. 8.2 - 1. In a town of 500 households, 220 have a dog....Ch. 8.2 - 2. The _______ _______, denoted p̂, is given by...Ch. 8.2 - 3. True or False: The population proportion and...Ch. 8.2 - 4. True or False: The mean of the sampling...Ch. 8.2 - 5. Describe the circumstances under which the...Ch. 8.2 - 6. What happens to the standard deviation of as...Ch. 8.2 - In Problems 7–10, describe the sampling...Ch. 8.2 - Prob. 8AYUCh. 8.2 - In Problems 7–10, describe the sampling...Ch. 8.2 - In Problems 7–10, describe the sampling...Ch. 8.2 - 11. A simple random sample of size n = 75 is...Ch. 8.2 - 12. A simple random sample of size n = 200 is...Ch. 8.2 - 13. A simple random sample of size n = 1000 is...Ch. 8.2 - Prob. 14AYUCh. 8.2 - Prob. 15AYUCh. 8.2 - Prob. 16AYUCh. 8.2 - 17. Marriage Obsolete? According to a study done...Ch. 8.2 - 18. Credit Cards According to creditcard.com, 29%...Ch. 8.2 - 19. Afraid to Fly According to a study conducted...Ch. 8.2 - 20. Having Children? The Pew Research Center...Ch. 8.2 - 21. Election Prediction Exit polling is a popular...Ch. 8.2 - 22. Acceptance Sampling A shipment of 50,000...Ch. 8.2 - 23. Social Security Reform A researcher studying...Ch. 8.2 - 24. ADHD A researcher studying ADHD among...Ch. 8.2 - 25. Reincarnation Suppose 21% of all American...Ch. 8.2 - 26. Assessments Consider the homeowners...Ch. 8.2 - 27. Airline Reservations In Chapter 6, we learned...Ch. 8.2 - Prob. 28AYUCh. 8.2 - Prob. 29AYUCh. 8 - Prob. 1RECh. 8 - Prob. 2RECh. 8 - Prob. 3RECh. 8 - Prob. 4RECh. 8 - Prob. 5RECh. 8 - 6. Copper Tubing A machine at K&A Tube &...Ch. 8 - Prob. 7RECh. 8 - Prob. 8RECh. 8 - Prob. 9RECh. 8 - Prob. 10RECh. 8 - Prob. 1CTCh. 8 - Prob. 2CTCh. 8 - 3. The charge life of a certain lithium ion...Ch. 8 - Prob. 4CTCh. 8 - Prob. 5CTCh. 8 - Prob. 6CTCh. 8 - Prob. 7CTCh. 8 - Prob. 1CSCh. 8 - Prob. 2CSCh. 8 - Prob. 3CSCh. 8 - Prob. 4CSCh. 8 - Prob. 5CSCh. 8 - Prob. 6CSCh. 8 - Prob. 7CSCh. 8 - Prob. 8CSCh. 8 - Prob. 9CSCh. 8 - Prob. 10CSCh. 8 - 11. Compute the mean for the first 10 values in...Ch. 8 - Prob. 12CSCh. 8 - Prob. 13CSCh. 8 - Prob. 14CSCh. 8 - Prob. 15CSCh. 8 - Prob. 16CSCh. 8 - Prob. 17CSCh. 8 - Prob. 18CSCh. 8 - Prob. 19CS
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