5. A control chart for number nonconforming chart (np chart) is to be established based on a samplesize of n=300. To initiate the control chart, 40 samples, each of 300 items, were selected and thenumber nonconforming tabulated for all 40 samples, yielding the following: E, np = d = 120a). Compute: np, Pb). Establish the parameters of the np chart (namely CL, UCL, LCL)c). Suppose the fraction nonconforming p shifts to 0.02. What is the probability that the shift wouldbe detected in the first sample taken after the shift has occurred? (Use the Poisson Approximation)

Given that : Sample size (n)=300 Number of samples (k)=40 Σnp=d=120 We have to find . a). Compute:…

Answered: 5. A control chart for number…

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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The table below summarizes data from a survey of a sample of women. Using a 0.01significance level, and assuming that the sample sizes of 800 men and 300 women are predetermined, test the claim that the proportions of agree/disagree responses are the same for subjects interviewed by men and the subjects interviewed by women. Does it appear that the gender of the interviewer affected the responses of women? Gender of Interviewer Man Woman Women who agree 498 247 Women who disagree 302 53 Compute the test statistic, rounding to three decimal places. Find the critical value(s). (Round to three decimal places) What is the conclusion based on the hypothesis test?
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When companies are designing a new product, one of the steps typically taken is to see how potential buyers react to a picture or prototype of the proposed product. The product-development team for a notebook computer company has shown picture A to a large sample of potential buyers and picture B to another, asking each person to indicate what they "would expect to pay" for such a product. The data resulting from the two pictures are provided in file (sheet 6). Using the 0.05 level of significance, determine whether the prototypes might not really differ in terms of the price that potential buyers would expect to pay. Sheet 6 ComputerA ComputerB 3 317 2 965 2 680 3 083 3 286 3 137 2 859 2 950 2 693 3 161 2 945 2 918 2 908 3 158 3 193 3 082 3 240 2 903 3 040 3 103…
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