EP STATISTICS-ACCESS (18 WEEK)
5th Edition
ISBN: 9780135960592
Author: Sullivan
Publisher: PEARSON CO
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Chapter 8.1, Problem 37AYU
To determine
Case that has a higher probability .
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A company manages an electronic equipment store and has ordered
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Show how you get critical values of 1.65, -1.65, and $1.96 for a right-tailed, left- tailed, and two-tailed hypothesis test (use a = 0.05 and assume a large sample size).
Chapter 8 Solutions
EP STATISTICS-ACCESS (18 WEEK)
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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- Suppose that a sports reporter claims the average football game lasts 3 hours, and you believe it's more than that. Your random sample of 35 games has an average time of 3.25 hours. Assume that the population standard deviation is 1 hour. Use a = 0.05. What do you conclude?arrow_forwardSuppose that a pizza place claims its average pizza delivery time is 30 minutes, but you believe it takes longer than that. Your sample of 10 pizzas has an average delivery time of 40 minutes. Assume that the population standard deviation is 15 minutes and the times have a normal distribution. Use a = 0.05. a. What are your null and alternative hypotheses? b. What is the critical value? c. What is the test statistic? d. What is the conclusion?arrow_forwardTable 5: Measurement Data for Question 9 Part Number Op-1, M-1 Op-1, M-2 | Op-2, M-1 Op-2, M-2 | Op-3, M-1 Op-3, M-2 1 21 20 20 20 19 21 2 24 23 24 24 23 24 3 4 5 6 7 8 9 10 11 21 12 8222332 201 21 20 22 20 22 27 27 28 26 27 28 19 18 19 21 24 21 22 19 17 18 24 23 25 25 23 26 20 20 18 19 17 13 23 25 25 2 3 3 3 3 2 3 18 18 21 21 23 22 24 22 20 19 23 24 25 24 20 21 19 18 25 25 14 24 24 23 25 24 15 29 30 30 28 31 16 26 26 25 26 25 17 20 20 19 20 20 843882388 20 18 25 20 19 25 25 30 27 20 18 19 21 19 19 21 23 19 25 26 25 24 25 25 20 19 19 18 17 19 17 Question 9 A measurement systems experiment involving 20 parts, three operators (Op-1, Op-2, Op-3), and two measure- ments (M-1, M-2) per part is shown in Table 5. (a) Estimate the repeatability and reproducibility of the gauge. (b) What is the estimate of total gauge variability?" (c) If the product specifications are at LSL = 6 and USL 60, what can you say about gauge capability?arrow_forward
- Question 5 A fraction nonconforming control chart with center line 0.10, UCL = 0.19, and LCL = 0.01 is used to control a process. (a) If three-sigma limits are used, find the sample size for the control charte 2 (b) Use the Poisson approximation to the binomial to find the probability of type I error. (c) Use the Poisson approximation to the binomial to find the probability of type II error if the process fraction defective is actually p = 0.20.arrow_forwardQuestion 8 Ten parts are measured three times by the same operator in a gauge capability study. The data are shown in Table 4. (a) Describe the measurement error that results from the use of this gauge. I (b) Estimate total variability and product variability. (c) What percentage of total variability is due to the gauge? (d) If specifications on the part are at 100±15, find the P/T ratio for this gauge. Comment on the adequacy of the gauge. 3 Table 4: Measurement Data for Question 8 Part Number Measurement 1 Measurement 2 Measurement 3 1 2 100 95 101 100 93 97 3 101 103 100 4 96 95 97 5 98 98 96 6 99 98 98 7889 95 97 98 100 99 98 100 100 97 10 100 98 98 99arrow_forwardQuestion 6 The data shown in Table 3 are and R values for 24 samples of size n = 5 taken from a process producing bearings. The measurements are made on the inside diameter of the bearing, with only the last three decimals recorded (i.e., 34.5 should be 0.50345). Perform a process capability analysis using and R charts for the data from Table 3. Table 3: Data for Question 6 Sample Number R | Sample Number I Ꭱ 1 34.5 3 13 35.4 8 2 34.2 4 14 34.0 6 ∞∞ 31.6 15 37.1 5 4 31.5 4 16 34.9 7 56789 35.0 5 17 33.5 4 34.1 6 18 31.7 3 32.6 4 19 34.0 8 33.8 3 20 35.1 4 34.8 7 10 33.6 8 11 31.9 3 12 38.6 9 2232 21 33.7 2 32.8 1 33.5 24 34.2 2 32 3arrow_forward
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