EvaluationComplete the following table. Then solve for the mean and variance of the sampling distribution of the means.ObservationSamplexx-μx(x-μ)²1(2,2)2(2,4)3(2,6)4(2,8)5(4,2)6(4,4)7(4,6)8(4,8)9(6,2)10(6,4)11(6,6)12(6,8)13(8,2)14(8,4)15(8,6)16(8,8)

Sampling distribution of sample mean follows the central limit theorem.

Answered: Evaluation Complete the following…

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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llustration 9.4. The first and third columns of Table 9.3 give the frequency distribution of the average monthly earnings of male workers. Calculate the mean earnings. TABLE 9.3. DISTRIBUTION OF MALE WORKERS BY AVERAGE MONIHLY EXPENSES (Computation of Arithmetic Mean . . . Long Method) Monthly earnings Mid-point No. of workers Rs Rs Rs m fm 3,600 5,320 6,800 9,630 20,500 23,595 34,080 42,250 27.5 - 32.5 30 120 32.5–37.5 35 152 37.5–42.5 40 170 42.5 47.5 45 214 47.5 – 52.5 50 410 52.5 57.5 55 429 57.5 62.5 60 568. 62.5-67.5 65 650 55,650 68,625 59,600 45,050 23,310 14,440 10,700 5,250 2,750 67.5 -72.5 70 795 72.5 -77.5 77.5-82.5 75 915 80 745 82.5-87.5 85 530 87.5-92.5 90 259 92.5-97.5 95 152 97.5 - 102.5 100 107 102.5--107.5 105 SO 107.5 -112.5 110 25 Σ 6,291 4, 31,1 50
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Path: p Calculate the variance of each of these fictitious samples: (a) 12, 6, 7, 3 (b) 9, 13, 8, 10 (c) 21, 15, -10, 6 A Paragraph a= CTRONIQ F5 F6
Exhibit 5-6Probability Distribution x f(x) 10 .2 20 .3 30 .4 40 .1 Refer to Exhibit 5-6. The variance of x equals _____.
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Single-Sample z test. Here are the Degree of Reading Power (DRP) scores for a random sample of 10 third grade students in the Albany City school district: 31, 27, 38, 34, 42, 28, 26, 43, 46, 27 You wonder whether the mean score of this sample is greater than the population mean of all third grade students in the Albany City school district, which is 30. Suppose scores on the DRP are known to be normally distributed with a population standard deviation of 11. Step 1) Population 1 (Sample): Population 2: Null Hypothesis (H0): Research Hypothesis (H1): Step 2) Determine the characteristics of the comparison distribution. Sample Mean = M = _________ Mean of the population = μ = ________ Population standard deviation = = _________ Standard deviation of distribution of means = = __________ Step 3) Determine the cutoff score on the z distribution (use a 0.05 p value). Cut-off score = _________ Step 4) Determine your sample’s z score. z = ___________ Step…
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Let the degree of freedom of treatment be df1 and error be df2. Based on the figure, which is the correct combination of (df1,df2)? SUMMARY Groups Count Sum Average Variance Column 1 231 46.2 34.2 Column 2 200 40 2.5 Column 3 232 46.4 44.3 Column 4 168 33.6 20.3 A. (2,12) В. (2, 16) С. (4, 16) D. (3, 16) A. D Answer B.
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Evaluation Complete the following table. Then solve for the mean and variance of the sampling distribution of the means. Observation x x-μx (x-μ)² Sample (2,2) 1 2 (2,4) 3 (2,6) 4 (2,8) 5 (4,2) 6 (4,4) 7 (4,6) 8 (4,8) 9 (6,2) 10 (6,4) 11 (6,6) 12 (6,8) 13 (8,2) 14 (8,4) 15 (8,6) 16 (8.8)