Judy Holmes Textiles has decided to use a c-Chart to monitor the number of defectsper pair of jeans produced by their manufacturing process. The c-Chart should beconstructed using ±3 standard deviations from the mean. The operations managerrandomly samples one pair of jeans at 10 successively selected time periods and countsthe number of defects on the pair of jeans. Data shown below: TOTAL DEFECTS= 64Sample: 1 2 3 4 5 6 7 8 9 10Defects 4 7 679 57 10 54The Lower Control Limit for this Control Chart is?O 6.48O 5.00O 0.00O 11.24

Here we have given the data, using this data we have to find the lower control limit for c chart.…

Answered: Judy Holmes Textiles has decided to use…

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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This frequency distribution represents the data obtained from a sample of word processor repairers. The values are the days between service calls on 80 machines. COMPARE the values of various measure of dispersion (Range, Interquartile range, Mean Deviation, Variance and standard deviation) in the following data: Class boundaries Frequency25.5–28.5 528.5–31.5 931.5–34.5 3234.5–37.5 2037.5–40.5 1240.5–43.5 2
The weight of 45 watermelons from a farm is shown below.Weight Frequency11-15 416-20 821-25 1326-30 1131-35 9i. Calculate the mean ii. Calculate the median iii. Calculate the modeiv. Comment on the skewness of this distribution.
According to the Carnegie unit system, the recommended number of hours students should study per unit is 2. Are statistics students' study hours less than the recommended number of hours per unit? The data show the results of a survey of 12 statistics students who were asked how many hours per unit they studied. Assume a normal distribution for the population. 3.4, 0.2, 0, 0.4, 1.8, 1.9, 0, 0, 0.3, 2.9, 0.8, 1.6 What can be concluded at the αα = 0.10 level of significance? The test statistic = (please show your answer to 4 decimal places.) The p-value = (Please show your answer to 4 decimal places.) Based on this, we should the null hypothesis. Thus, the final conclusion is that ...
According to Our World in Data, male heights follow a normal distribution with µ =178.4 cm and o= 7.6 cm. What is the 99th percentile height for men? Select the correct Excel command. =NORM.DIST(0.99, 178.4, 7.6) =NORM.INV(0.99, 178.4, 7.6) =NORM.INV(1-0.99, 178.4, 7.6) =NORM.DIST(1-0.99, 178.4, 7.6)
A semiconductor manufacturer produces devices used as central processing units in personal computers. The speed of the devices (in megahertz) is important because it determines the price that the manufacturer can charge for the devices. The following table contains measurements on 120 devices. a. Calculate the sample mean, sample variance, and standard deviation. b. Find the median and quartiles for the data. c. Construct a box plot of the data. Find the interquartile range and determine the number of outliers
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An operations manager wants to know whether the maintenance of a filling machine for 2 litre milk bottles has made a difference in the average fill of the milk bottle. She randomly selects 25 bottles before the maintenance service, and 25 bottles after the maintenance service has taken place. The resulting SPSS output is shown below: Paired Samples Statistics Mean N Std. Deviation Std. Error Mean Pair 1 After Service 2.0029 25 .01142 .00228 Before service 1.9687 25 .03193 .00639 Paired Samples Test Paired Differences t df Sig. (2- tailed) Mean Std. Deviation Std. Error Mean 95% Confidence Interval of the Difference Lower Upper Pair 1 After Service – Before service .03420 .03503 .00701 .01974 .04866 4.882 24 .000 Question: Based on the output choose the most accurate answer
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