Develop an OC curve for a sampling plan in whicha sample of n 10 items is drawn from lots of N 1000. Th eaccept/reject criteria are set up in such a way that we accept a lot ifno more than one defect (c 1) is found
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Develop an OC curve for a sampling plan in which
a sample of n 10 items is drawn from lots of N 1000. Th e
accept/reject criteria are set up in such a way that we accept a lot if
no more than one defect (c 1) is found
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- 4. A unique lot of size N 100 is submitted for inspection. Determine the sample size n for a c = 0 defectives sampling plan that accepts the lot with 10% probability or less if the lot contains D = 6 defectives.Sketch the OC curve for a sampling plan having asample size of 25 and an acceptance number of 2.3 not sure if I'm right on the 1st part, and don't understand how to get k=
- As part of a statistics project, a 6th grade teacher brings to class a container with 300 red marbles and 500 white marbles which are thoroughly mixed. To figure out how many marbles in the container are red without actually counting them all, a student randomly draws 40 marbles from the container. Of the 40 marbles drawn, 16 are red. 1) What is the sample size? 2) what is the sampling method used in this example called?4. The following shows four values of all patients' age under Dr. Ali's supervision. 38, 48, 50, 84 a) Compute the population mean of the patients' age. b) Construct a table for a sample means of size two and find all the possible sample means. c) Find the sampling error for sample data of 38 and 84.A fitness club is going to conduct a questionnaire survey from a list of 120 members. Each member is assigned with a survey number and 6 members are selected randomly for an interview, (@) Identify the above sampling method. (b) How many digits of the survey number should be used? (c) Use the Random Number Table below with the starting point row I column 4 to identify the 6 survey numbers, Column 123456 7 8 9 10 11 12 13 14 15 9. 16 17 18 | 19 20 6. Row 10 2.7 11 0119-21-7 2 9 3 8 7027 11 3 24 3 9036 43 4 7.6 4 09 7636 7. 3. 8. 6. 1. 1. 6. 9. 9. 8. 4 8. 1. 6. 6. 417 8. 7. 6. 7. 3. 3. 6. (d) To simplify the survey, the membership officer suggests using systematic sampling, beginning with the 3 number and taking every 21" number. பயmம்crs, Write down the 6 survey
- [partI_Item#1A]A lecturer wishes to study the examination results of students from the Faculty of Computer Science which consists of 30 classes. He intends to choose only eight classes and all the students from these eight classes will be selected (a) State the population for this study. (b) State the variable and its type for this study. (c) State the sampling technique used for this staA factory that produces parts for the aviation industry sells in lots of 300 units each. The acceptance sampling plan used in the factory works as follows: The first sample of 9 units is taken, in this example, if no defective unit is found, the batch is accepted, if more than 3 defective units are found, the batch is rejected. Otherwise, a second sample of 19 units is taken, if the total number of defects in two samples is at most 3, the batch is accepted. Answer the following questions, assuming that the defective product ratio of batches is 0.03 a)Calculate the probability of accepting the lot examined in the first example. b)Calculate the probability of rejecting the analyzed lot in the first example. c)List possible alternatives to be able to accept this party. (For which values of d1 and d2 can a party be accepted?) d)Calculate the acceptance probability of the lot. e)
- 5. Suppose a strata (stratified random sampling ) represents 10 companies from a population of 100 companies , how many companies this strata should be represented in a sample of 60 companies? *There is u very popular lottery in which a ticket is called a scratcher. In this lottery, 43% of the scratchers are winning ones. Suppose that we will take a random sample of 10 scratchers. Let p represent the proportion of winning scratchers from the sample. Consider the sampling distribution of the sample proportion p. Complete the following. Carry your intermediate computations to four or more decimal places. Write pur answers with two decimal places, rounding if needed. (a) Find HA (the mean of the sampling distribution of the sample proportion). %3D (b) Find on (the standard deviation of the sampling distribution of the sample proportion). %3D Explanation Recheck 2021 McGraw-Hill Education All Rights Reserved Terms of Use Privacy STOSOT erm er m « Previous hp5. Which of the following is not a characteristic of stratified sampling? a) The researcher chooses who to approach and so might bias the sample 3 b) Those who are available to be surveyed in public places are unlikely to constitute a representative sample c) The random selection of units makes it possible to calculate the standard error. d) It is a relatively fast and cheap way of finding out about public opinions.
