At the car production plant, the revision of 3850 units is carried out. The manager decides to conduct a lot inspection by means of a sample. He wants his study to be 98% confident and decides to allow a 5% error. Calculate the sample size to inspect a lot when: a. It starts and has never reviewed a batch so it does not have previous information b. Several reviews of batches of the same size have been carried out and a positive variability of 0.75 has been obtained

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A: Given information- Sample variance, s2 = .67 So, sample standard deviation, s = 0.819 Sample size, n…

Q: Convert the following to z-score: a. Raw score of 100; mean of 60; SD of 15 b. Raw score of 95; mean…

A: Z=x-µσ This is the formula for z-score. x= raw score µ= mean σ= standard deviation (SD)

Q: The range and the variance are both measures of distance.

A: Solution-: The range and the variance are both measures of distance.

Q: EVALUATE THIS PROBLEM: 1. Given the scores of Statistics and Probability 5-item quiz; 0, 1, 2, 3 and…

A: We have given data are  0,1,2,3,4 x x2 0 0 1 1 2 4 3 9 4 16 5 25 ∑x = 15 ∑x2 = 55

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Q: Use the following two control charts that result from testing batches of newly manufactured aircraft…

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Q: Given p = 0.6, q = 0.4 and o. = 0.006. Determine sample size from the given data. %3D %3D

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A: I will use the "1-Var stats" command in the TI-84 calculator. Follow the snapshots given below.…

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A: We have to find given probability.

Q: For the data set: 0.09, 0.10, 0.11, 0.13, 0.09, 0.11, 0.10, 0.07 Which variance would describe the…

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A: The provided information is as follows:The data set is given in the example.The sample size is .

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A: Correlation coefficient is given by, r=cov(x,y)/sd(x)*sd(y) Where cov(x,y)= E(xy)-E(x)*E(y) E(xy)=…

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Q: Compute the population variance of the data: 16,18,23,21,17,16,24,23,9,17,11,16,22,10,15,14. A.…

A: σ2= ∑(xi-x¯)2n

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Q: A boat capsized and sank in a lake. Based on an assumption of a mean weight of 138 Ib, the boat was…

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Q: Six different rain gauges on campus recorded the following precipitations during the month of…

A: Here, x x-x (x-x)2 8.4 -1.63 2.6569 9.8 -0.23 0.0529 11.1 1.07 1.1449 4.6 -5.43 29.4849…

Q: Consider the following data: 2.1, 4.6, 2,7.3, 0.5, 3.1,8,0.9,9,9.7. Calculate the inter-quartile…

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Q: 1. The average grade of the whole class under study is 82.15. Whole class: Average grade (82.15):

A: Hi! Thank you for the question. As per the honor code, we are allowed to answer three sub-parts at a…

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Q: The table below shows the grades of the 20 students of a martial arts class. There are three grades:…

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Q: population mean e. population variance f. population standard deviation. F

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Q: One of the following is classifies as interval level: Select one: a. Height of the student O b. Area…

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Q: Following are the fuel efficiency, in miles per gallon, for a sample of convertibles. Calculate the…

A: Here, the sample size, n is 5. The mean is calculated below.   x¯=∑i=1nxin=25+26+21+20+215=1135=22.6…

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Q: Find the variance of the following: 12.0, 9.5, 10.5, 18.4, 33.1, 41.7, 50.6, 29.9, 23.0.

A:

Q: The formula in which   is divided by  one less than the number of observations in a sample is…

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Q: What technique compares dispersion with the average of data? Select one: a. Standard deviation b.…

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