PROBABILITY AND STATISTICS FOR ENGINEER
9th Edition
ISBN: 2818000048605
Author: WALPOLE
Publisher: PEARSON
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Chapter 5.5, Problem 88RE
a.
To determine
Find the
b.
To determine
Find the probability that 12 attempted starts are made during the acceptance process.
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A major company in the Montreal area, offering a range of engineering services from project preparation to construction execution, and industrial project management, wants to ensure that the individuals who are responsible for project cost estimation and bid preparation demonstrate a certain uniformity in their estimates. The head of civil engineering and municipal services decided to structure an experimental plan to detect if there could be significant differences in project evaluation.
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Compute the relative risk of falling for the two groups (did not stop walking vs. did stop). State/interpret your result verbally.
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Chapter 5 Solutions
PROBABILITY AND STATISTICS FOR ENGINEER
Ch. 5.2 - Prob. 1ECh. 5.2 - Twelve people are given two identical speakers,...Ch. 5.2 - An employee is selected from a staff of 10 to...Ch. 5.2 - In a certain city district, the need for money to...Ch. 5.2 - According to Chemical Engineering Progress...Ch. 5.2 - Prob. 6ECh. 5.2 - Prob. 7ECh. 5.2 - Prob. 8ECh. 5.2 - Prob. 9ECh. 5.2 - Prob. 10E
Ch. 5.2 - The probability that a patient recovers from a...Ch. 5.2 - A traffic control engineer reports that 75% of the...Ch. 5.2 - A national study that examined attitudes about...Ch. 5.2 - The percentage of wins for the Chicago Bulls...Ch. 5.2 - Prob. 15ECh. 5.2 - Prob. 16ECh. 5.2 - If X represents the number of people in Exercise...Ch. 5.2 - Prob. 18ECh. 5.2 - According to USA Today (March 18, 1997), of 4...Ch. 5.2 - Prob. 21ECh. 5.2 - Prob. 22ECh. 5.2 - Prob. 23ECh. 5.2 - Prob. 24ECh. 5.2 - Prob. 25ECh. 5.2 - Assuming that 6 in 10 automobile accidents are due...Ch. 5.2 - Prob. 27ECh. 5.2 - Prob. 28ECh. 5.3 - A homeowner plants 6 bulbs selected at random from...Ch. 5.3 - To avoid detection at customs, a traveler places 6...Ch. 5.3 - A random committee of size 3 is selected from 4...Ch. 5.3 - From a lot of 10 missiles, 4 are selected at...Ch. 5.3 - If 7 cards are dealt from an ordinary deck of 52...Ch. 5.3 - Prob. 34ECh. 5.3 - A company is interested in evaluating its current...Ch. 5.3 - A manufacturing company uses an acceptance scheme...Ch. 5.3 - Prob. 37ECh. 5.3 - Prob. 38ECh. 5.3 - Prob. 39ECh. 5.3 - Prob. 40ECh. 5.3 - Prob. 41ECh. 5.3 - Prob. 42ECh. 5.3 - Prob. 43ECh. 5.3 - Prob. 44ECh. 5.3 - Prob. 45ECh. 5.3 - Prob. 46ECh. 5.3 - Prob. 47ECh. 5.3 - Prob. 48ECh. 5.5 - Prob. 49ECh. 5.5 - Prob. 50ECh. 5.5 - Prob. 51ECh. 5.5 - Prob. 52ECh. 5.5 - Prob. 53ECh. 5.5 - Prob. 54ECh. 5.5 - Prob. 55ECh. 5.5 - Prob. 56ECh. 5.5 - Prob. 57ECh. 5.5 - Prob. 58ECh. 5.5 - Prob. 59ECh. 5.5 - Prob. 60ECh. 5.5 - Prob. 61ECh. 5.5 - Prob. 62ECh. 5.5 - Prob. 63ECh. 5.5 - Prob. 64ECh. 5.5 - Prob. 65ECh. 5.5 - Prob. 66ECh. 5.5 - Prob. 67ECh. 5.5 - Prob. 68ECh. 5.5 - Prob. 69ECh. 5.5 - Prob. 70ECh. 5.5 - Prob. 71ECh. 5.5 - Prob. 72ECh. 5.5 - Prob. 73ECh. 5.5 - Prob. 74ECh. 5.5 - Prob. 75ECh. 5.5 - Prob. 76ECh. 5.5 - Prob. 77RECh. 5.5 - Prob. 78RECh. 5.5 - Prob. 79RECh. 5.5 - Prob. 80RECh. 5.5 - Prob. 81RECh. 5.5 - Prob. 82RECh. 5.5 - Prob. 83RECh. 5.5 - Prob. 84RECh. 5.5 - Prob. 85RECh. 5.5 - Prob. 86RECh. 5.5 - Prob. 87RECh. 5.5 - Prob. 88RECh. 5.5 - Prob. 89RECh. 5.5 - Prob. 90RECh. 5.5 - Prob. 91RECh. 5.5 - Prob. 92RECh. 5.5 - Prob. 93RECh. 5.5 - Prob. 94RECh. 5.5 - Prob. 95RECh. 5.5 - Prob. 96RECh. 5.5 - Prob. 97RECh. 5.5 - Prob. 98RECh. 5.5 - Prob. 99RECh. 5.5 - Prob. 100RECh. 5.5 - Prob. 101RE
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- Question 1 The data shown in Table 1 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). Table 1: Bearing Diameter Data Sample Number I R Sample Number I R 1 34.5 3 13 35.4 8 2 34.2 4 14 34.0 6 3 31.6 4 15 37.1 5 4 31.5 4 16 34.9 7 5 35.0 5 17 33.5 4 6 34.1 6 18 31.7 3 7 32.6 4 19 34.0 8 8 33.8 3 20 35.1 9 34.8 7 21 33.7 2 10 33.6 8 22 32.8 1 11 31.9 3 23 33.5 3 12 38.6 9 24 34.2 2 (a) Set up and R charts on this process. Does the process seem to be in statistical control? If necessary, revise the trial control limits. [15 pts] (b) If specifications on this diameter are 0.5030±0.0010, find the percentage of nonconforming bearings pro- duced by this process. Assume that diameter is normally distributed. [10 pts] 1arrow_forward4. (5 pts) Conduct a chi-square contingency test (test of independence) to assess whether there is an association between the behavior of the elderly person (did not stop to talk, did stop to talk) and their likelihood of falling. Below, please state your null and alternative hypotheses, calculate your expected values and write them in the table, compute the test statistic, test the null by comparing your test statistic to the critical value in Table A (p. 713-714) of your textbook and/or estimating the P-value, and provide your conclusions in written form. Make sure to show your work. Did not stop walking to talk Stopped walking to talk Suffered a fall 12 11 Totals 23 Did not suffer a fall | 2 Totals 35 37 14 46 60 Tarrow_forwardQuestion 2 Parts manufactured by an injection molding process are subjected to a compressive strength test. Twenty samples of five parts each are collected, and the compressive strengths (in psi) are shown in Table 2. Table 2: Strength Data for Question 2 Sample Number x1 x2 23 x4 x5 R 1 83.0 2 88.6 78.3 78.8 3 85.7 75.8 84.3 81.2 78.7 75.7 77.0 71.0 84.2 81.0 79.1 7.3 80.2 17.6 75.2 80.4 10.4 4 80.8 74.4 82.5 74.1 75.7 77.5 8.4 5 83.4 78.4 82.6 78.2 78.9 80.3 5.2 File Preview 6 75.3 79.9 87.3 89.7 81.8 82.8 14.5 7 74.5 78.0 80.8 73.4 79.7 77.3 7.4 8 79.2 84.4 81.5 86.0 74.5 81.1 11.4 9 80.5 86.2 76.2 64.1 80.2 81.4 9.9 10 75.7 75.2 71.1 82.1 74.3 75.7 10.9 11 80.0 81.5 78.4 73.8 78.1 78.4 7.7 12 80.6 81.8 79.3 73.8 81.7 79.4 8.0 13 82.7 81.3 79.1 82.0 79.5 80.9 3.6 14 79.2 74.9 78.6 77.7 75.3 77.1 4.3 15 85.5 82.1 82.8 73.4 71.7 79.1 13.8 16 78.8 79.6 80.2 79.1 80.8 79.7 2.0 17 82.1 78.2 18 84.5 76.9 75.5 83.5 81.2 19 79.0 77.8 20 84.5 73.1 78.2 82.1 79.2 81.1 7.6 81.2 84.4 81.6 80.8…arrow_forward
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