41. A manufacturer of aircraft engines uses a sequential sampling plan to accept orreject incoming lots of microprocessors used in the engines. Assume an AQL of1 percent and an LTPD of 5 percent. Determine a sequential sampling plan as-suming a =.05, B = .10. Graph the acceptance and rejection regions.42. Consider the sequential sampling plan described in Problem 41. Suppose that a lotof 1,000 microprocessors is inspected. Suppose that the 31st, 89th, 121st, and122nd chips tested are found defective. Assuming the sequential sampling plan de-rived in Problem 41, will the lot be accepted, rejected, or neither by the time the122nd chip has been tested?

Answered: 41. A manufacturer of aircraft engines…

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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As a Physical Education teacher of ADU, Sir Loui wants to compute for the Body Mass Index of few students as part of his research. As a start, the following are the height of five students in meters. Jaeight- 1.47; Mae - 1.58; Grace - 1.67; Dyan - 1.69 and Ruzz - 1.51. Supposed samples of size 2 are taken from this population of five students. Construct a sampling distribution for the solutions and answers.a. What is the probability of getting a mean of 1.57?b. What is the mean of the sampling distribution of sample means?c. How many possible outcomes?d. What is the variance of the population?e. What is the mean of the population?f. What is the standard deviation of the sampling distribution of sample means?
16. Explain the sampling method which involves selection of a block(s) of contiguous items from within the population. Also give example.
1. For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.The National Council of Small Businesses is interested in the proportion of small businesses that declared Chapter 11 bankruptcy last year. Since there are so many small businesses, the National Council intends to estimate the proportion from a random sample. Let p be the proportion of small businesses that declared Chapter 11 bankruptcy last year. (a) If no preliminary sample is taken to estimate p, how large a sample is necessary to be 95% sure that a point estimate p̂ will be within a distance of 0.11 from p? (Round your answer up to the nearest whole number.) small businesses(b) In a preliminary random sample of 30 small businesses, it was found that six had declared Chapter 11 bankruptcy. How many more small businesses should be included in the sample to be 95% sure that a point estimate p̂ will be within a distance of 0.110 from p? (Round your answer…
2. In a recent survey, a poll was conducted on twitter to know the stands of the youth on the (#FixtheCountry Ghana) and #Kumepr3ko. Users where asked if they are willing to participate in a demonstration. The results for the survey is summarize below: #hashtag Sample size Willing to join #FixtheCountry Ghana #Kumepr3ko 721 277 895 100 a. Estimate the true proportion P2 of all the people who are willing to go on the Kumepr3ko demonstration and obtain a 95% confidence interval for P2 b. Can you tell that people are willing to go on the kumepr3ko demonstration than that of the #FixtheCountryGhana. Use a=0,01.
5. Suppose that 68% of all adults think that airplanes would be safer places if airline passengers were banned from carrying on board any luggage, including purses, computers, and briefcases. An opinion poll plans to ask an SRS of 1023 adults about airplane safety. The proportion of the sample who think that airplanes would be safer if passengers were banned from carrying on board any luggage, including purses, computers, and briefcases, will vary if we take many samples from this same population. The sampling distribution of the sample proportion is approximately Normal with mean 0.68 and standard deviation about 0.015. Sketch this Normal curve and use it to answer the following question. Round to nearest tenth percent. What is the probability of getting a sample in which more than 70% think that airplanes would be safer if passengers were banned from carrying on board any luggage, including purses, computers, and briefcases?
Match the name of the sampling method with the description of corresponding situation. Situations ask all the students in your math class pulling 50 names from a hat dividing the population that contains an equal number of men and women by Gender, and choosing 30 people of each gender randomly select four tables in the cafeteria and survey all the people at those four tables choosing every 5th person on a list Sampling Method b. PystematC d. Stratified e. Cluster
Withdrawal symptoms may occur when a person using a painkiller stops using it. For a certain, widely taken painkiller, withdrawal symptoms occur in 18% of people who have stopped using the painkiller. Suppose that we will take a random sample of 8 people who have stopped using the painkiller. Let p represent the proportion of people from the sample who experienced withdrawal symptoms. Consider the sampling distribution of the sample proportion p. Complete the following. Carry your intermediate computations to four or more decimal places. Write your answers with two decimal places, rounding if needed. (a) Find (the mean of the sampling distribution of the sample proportion). P H₁₁ = 1 Р (b) Find G (the standard deviation of the sampling distribution of the sample proportion). P 0₁ = P
As an analyst, we would like to perform a work sampling study on an assembly line. The jobs can bedifferentiated on the basis of the product size: A, B, and C. We perform a study over a five-week periodthat equals to 200 working hours. There are 12 workers to be examined. In total, we perform 1140observations. Yet, the worker absences lead to 15 worker-day deduction from the total working hourswhere workers work 8 hour each day. The study results are tabulated below. Q: For the C size product, construct a 96% confidence interval about the mean assembly time per productin terms of hours.a) (0,3702 0,4298)b) (0,4004 0,3996)c) (0,1805 0,1209)d) (0,3746 0,4254)e) (0,1253 0,1761)
8. According to law enforcement records, the proportion of all drivers who have received at least one speeding ticket is 0.20. Let’s say we choose a large random sample of drivers and determine the proportion who have received at least one speeding ticket. We know, if the sampling method is repeated, that the sample proportion will vary from sample to sample. In fact, if we look at the sampling distribution in this case, we will see a distribution that is Normal in shape, with a mean (or center) of 0.20 and a standard deviation of 0.036. From this information, we know the middle 68% of this distribution will be between approximately what two values? 1. 0.19 and 0.21 2. 0.152 and 0.248 3. 0.1996 and 0.2004 4. 0.176 and 0.224 5. 0.164 and 0.236
18. Suppose a researcher conducts a study on the relationship between hours of exercise per week and grade point average at a certain university. To be sure to get an equal number of men and women in the sample, the researcher divides the population into men and women and then randomly selects 200 men and 200 women for the study. What sampling technique did the researcher use? A. Simple Random SamplingB. Proportional Stratified Random SamplingC. Stratified Random SamplingD. Convenience Sampling

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