Brewertton Inc. has decided to use a p-Chart with 2-sigma control limits to monitor the proportion of defective copper wires produced by their production process. Thequality control manager randomly samples 400 copper wires at 14 successively selected time periods and counts the number of defective copper wires in the sample.TableStep 5 of 8: At the next time period, 400 copper wires are sampled and 30 defective copper wires are detected.AnswerControl ChartO In ControlO Out of ControlCopy TableTablesKeypadKeyboard ShortcutsPrevious step answersUpdated Control Chart Sample Defects12345OINEN61011121314149141213141414101414101212The average of the selected cell(s) is 14.000.Copy Value

Randomly sampled copper wires is n=400The number of time period is k=30The sample size and the…

Answered: Brewertton Inc. has decided to use a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Alabama's assembly unit has decided to use a p-Chart with an alpha risk of 3% to monitor the proportion of defective copper wires produced by their production process. The operations manager randomly samples 300 copper wires at 14 successively selected time periods and counts the number of defective copper wires in the sample. Answer How to enter your answer (opens in r Control Chart Step 2 of 8: What is the z-value associated with the level of significance stated in the problem? Round your answer to two decimal places. MASIN3A Select the Copy Table button to copy all values. To select an entire row or column, either click on the row or column header or use the Shift and arrow keys. To find the average of the selected cells, select the Average Values button. Sample Defects 1 2 4 Table 6 8 7 7 8 8 10 9 9 7 8 9 13 12 11 12 13 9 12 9 14 13 14 Copy Table Copy Table Average Values The average of the selected cell(s) is9.000. Copy Value x
Your statistics instructor often ponders the relationship between commute time and job satisfaction while driving back and forth to campus. Your instructor hypothesizes that people with a shorter commute time will have higher degrees of job satisfaction. Randomly sampling 600 Valley commuters, the instructor finds the following data listed in frequencies: Table 2: Commuters by Length of Commute and Job Satisfaction Job Satisfaction Number Who Commute 20 Minutes or Less Number Who Commute 21 to 40 Minutes Number Who Commute 41 Minutes or More Total Number for Each Level of Job Satisfaction Dissatisfied 10 60 140 210 Neutral 45 59 51 155 Satisfied 145 60 30 235 Total Number for Each Commute Time Range 200 179 221 1. Change frequencies to column percentages.
please dont use excel. i need all steps.
Part 1 Every 12 hours, 105 parts are randomly sampled and the # of defective parts (out of 105), is recorded. Results from 16 samples: Sample # Defects 1 8 2 5 3 1 4 6 4 10 6 2 567 00 8 Sample # Defects 9 10 11 12 13 14 15 16 5 7 0 3 9 6 4 8 1. What is the value of the statistic plotted for sample 16? 2. n = k= 3. What are the control limits for the most appropriate control chart?
When presented with prints from the same individual, a fingerprint expert will correctly identify the match 8686% of the time. Consider a forensic database of 12001200 different pairs of fingerprints, where each pair is a match. Complete parts a and b below. Question content area bottom Part 1 a. What proportion of the 12001200 pairs would an expert be expected to correctly identify as a match? The proportion of the 12001200 pairs that an expert would be expected to correctly identify as a match is enter your response here. (Round to four decimal places as needed.) Part 2 b. What is the probability that an expert will correctly identify fewer than 10801080 of the fingerprint matches? The probability that an expert will correctly identify fewer than 10801080 of the fingerprint matches is enter your response here. (Round to four decimal places as needed.)
A healthcare provider monitors the number of CAT scans perfomed each month in each of its clinics. The most recent year of data for a particular clinics follows (the reported variable is the number of CAT scans each month expressed as the number of CAT scans per thousand members of the health plan): 2.31, 2.09, 2.36, 1.95, 1.98, 2.25, 2.16, 2.07, 1.88, 1.94, 1.97, 2.02. Find a two-sided 95% confidence interval for the standard deviation. What should you do to address any reservations about this confidence interval? Round your answers to two decimal places (e.g. 98.76).
William Industries has decided to use a p-Chart with 3-sigma control limits to monitor the proportion of defective bolts produced by their production process. The operations manager randomly samples 250 bolts at 14 successively selected time periods and counts the number of defective bolts in the sample. Table Step 3 of 8: What is the Upper Control Limit? Round your answer to three decimal places. Answer How to enter your answer (oper Control Chart and arrow keys. 10 Tina the average or the selected cells, select the Average values Dutton. Copy Table Average Values The average of the selected cell(s) is 12.000. Copy Value Sample Defects 1 2 3 4 5 6 7 8 9 10 11 12 13 14 12 13 13 14 12 8 7 11 7 10 9 12 13 10 Copy Tab C
A statistics content developer at Aplia wanted to know whether study skills are related to memory quality. She invited student volunteers to perform an online memory task. The students saw a list of 60 words and were then asked to recognize a list of 10 words that were on the original list. Students were also asked to provide their GPAs. Consider the following data set, which was collected from student volunteers in 2009. The table gives the frequency for five intervals of scores on the number of correctly identified words. Use the dropdown menus to complete the table by filling in the missing values for the proportions and percentages. Score Interval f Proportion Percentage 9–10 29 0.19 19% 7–8 53 5–6 50 3–4 22 0.14 14% 1–2 1 0.01 1%
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The plant-breeding department at a major university developed a new hybrid boysenberry plant called Stumptown Berry. Based on research data, the claim is made that from the time shoots are planted 90 days on average are required to obtain the first berry. A corporation that is interested in marketing the product, tests 60 shoots by planting them and recording the number of days before each plant produces its first berry. The sample mean is 92.3 days. The corporation will not market the product if the mean number of days is more than the 90 days claimed. The hypotheses are: H0:μ = 90 H1:μ > 90 What is a type I error in the context of this problem

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