Exam For a group of 200 candidates, the mean and standard deviation of scores were found to be 40 and 15 respectively. Later on it was discovered that the scores 43 and 35 were misread as 34 and 53 respectively. Find the corrected mean and standard deviation corresponding to the correct figures. 717

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Q: Calculate both the sample and the population standard deviations using the data below. x 27 21 17 14…

A: X X2 27 729 21 441 17 289 14 196 7 49 1 1 ∑x=87 ∑X2=1705

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Q: 3 The brain volumes (cm³) of 20 brains have a mean of 1074.5 cm³ and a standard deviation of 129.5…

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Q: Q4) Data of 100 students' score was orded. The arithmetic mean and standard viation were 60 and 15…

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Q: Evaluate E=z E 11 2 21 n₁ + 22 2 n₂ for z = 1.65,0₁ = 0.94, 0₂ = 0.72, n₁ = 18, and n₂ = 42. (Round…

A: Given: Z* = 1.65 σ1 = 0.94 σ2 = 0.72 n1 = 18 n2 = 42 Formula Used: Margin of error E = Z*σ12n1+σ22n2

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A: Answer: Given data set is, 39,37,24,18,19,42,21,25,17,14,40,36,23,15,20,35,38,45 Given data set in…

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Q: Suppose m valable having the following probability density function given by (2(0-x) 02 f(x) = " x>0…

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Q: Q1) The subjects' score of a student at the final exams were as in the following tables. Therefore,…

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A: Note: According to Bartleby guidelines expert solve only one question and maximum 3 subpart of the…

Q: the following refer to the following data set, 40.5,36.2,62,62.46.2,62,28.1,53,48.4,39.6.  a. what…

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Q: Refer to Exhibit 10-32. The null hypothesis tested is Ho: d= 0. The test statistic for the mean of…

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Q: Gail averages 64 words per minute on a typing test with a standard deviation of 9.5 words per…

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Q: The summary statistics below are for the number of patients seen daily at two different emergency…

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Q: Find the class limits. The first lower class limit is 18.9

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Q: generate a simple linear regression solution such that Price predicts Sales. If management sets the…

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Q: c) A research conducted by SSTA022 Class representative at the University of Limpopo indicates that…

A: Given information: x¯1-x¯2=34%s12=110.25%s22=104.04%n1=31n2=31

Q: X 210 f(x) = - {} 0 8 < x < 22 otherwise

A: Given that  Pdf of X is  f(x) = { x/210  , 8 &lt; x &lt; 22

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A: part 4 Range= maximum value-minimum value Range=81-59=22 SD=22/4=5.5 (or a bit greater) This is less…