Given the following data set drawn at random from 250 population:- 20 46 43 45 59 48 53 41 34 36 81 66 66 35 41 63 70 66 50 31 (1) Calculate the sample mean and sample variance

Q: In an effort to counteract student cheating, the professor of a large class created four versions of…

A: a. Formula: Common population variance is obtained by pooling the sample variances given by using…

Q: 1. Given the data: 29.65 28.55 28.65 30.15 29.35 29.75 29.25 30.65 28.15 29.85 29.05 30.25 30.85…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: II. Find the sample mean, sample variance and sample standard deviation of the given data sets. 1.4…

A: As per our guidelines we are suppose to answer only one question. Given data is4, 7, 10, 13, 17, 21,…

Q: Consider the following data set: 49.95 50.05| 49.81 | 50.17| 50.27 49.96 50.01 || 49.84 | 50.02 |…

A: Given: Sample size n = 30 Formula Used: Sample Mean = 1n∑Xi Sample median (When n is even) =…

Q: The following values represent the daily wages of a sample of workers, the sample mean is OMR 30. 27…

A:

Q: 3.53 The following data represent the total points scored in each of the NFL championship games…

A: The total points scored in each of the NFL championship games played from 2000 through 2009 in that…

Q: 2. The following are the scores in Math of the sampled 15 Grade 10 students: 60 61 58 70 62 74 75 78…

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Q: Find the sample variance of the following data points. 6 10 11 15 10 [Keep 2 decimal places rounding…

A: GIVEN DATA POINTS : 6 , 10 , 11 , 15 , 10   TO FIND : VARIANCE OF DATA POINTS = ?

Q: Find the population variance and standard deviation for the following population: 26 25 29 23 14 20…

A: Data set: 26 25 29 23 14 20 12 18 24 31 22 32

Q: A population of grades for a statistics class of six students is given below: 90 65 70 85 86 70 Find…

A: given data : 90,65,70,85,86,70

Q: Find the mean, variance and standard deviation of the following data: X 19 20 21 22 23 P(X) 0.2 0.2…

A: The table shows the X values and its probabilities values.

Q: :Find the population variance for the following data set 24 19 32 15 28

A: Given: The following data is given x: 24 19 32 15 28

Q: Consider the following following frequency table Class frequency 1- 5 7 6 – 10 7 11 – 15 4 16 – 20…

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Q: (c) The following table shows the values, in thousands of dollars, of  40 randomly selected houses…

A: i) From the data, Maximum value is 1084. Minimum value is 34. Midrange for the data is as follows:…

Q: The following values represent the number of road accidents per day for a sample of days, 9. 15 4 14…

A: Given data, 9,15,4,14,8 Sample variance=?

Q: The following data set belongs to a population: 5 -7 2 0 -9 20 10 7 Calculate the range, variance,…

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Q: 2. Find the range and sample variance of the following numbers: 12 13 45 16 12 12 10 10 13 15 3.…

A: For the given data Find ( 2 ) Range =? Sample variance =? ( 3 ) popultion s.d =? Sample s.d =? ( 4 )…

Q: The following are the scores in Math of the sampled 15 Grade 10 students. 60 61 58 70 62 78 80 68 85…

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Q: 24. If an analysis of variance is used for the following data, what would be the effect of changing…

A: 24. The formula for sum of squares within(Error) is SSwithin=∑SSi. When the value of SS2 changing…

Q: Given the following data: A1 A2 Аз A4 65 75 59 94 87 69 78 89 73 83 67 80 79 81 62 88 81 72 83 69 79…

A: The following information has been provided:   A1 A2 A3 A4   65 75 59 94   87 69 78 89   73…

Q: The following data represents the miles per gallon gasoline consumption (highway) for a random…

A: Sample size (n) = 55 The data set is: 30 27 22 25 24 25 24 15 35 35 33 52…

Q: Of the electric bills for a samle of 40 families Electric bill Number of families 2 12-16 14 4-8…

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Q: Find the variance for the population consisting of the measurements ½, ¼, 1/3, ½, and 1/8 by using…

A: The population mean is, μ=∑XN=12+6+8+12+35=415=8.2 The population mean is 8.2.

Q: Given the following data. Find the variance: 2,4, 3,5 اختر احدى الدجابات O None 1.25 O 54 1.666

A: Measures of Dispersion: The word dispersion is used to denote the degree of heterogeneity in the…

Q: Find the sample variance s for the following sample data. Round your answer to the nearest…

A: Solution : The given data is 15, 20, 22, 25, 33

Q: Given the following sample values: 7.08 7.07 6.98 7.00 7.10 6.97 7.00 7.03 7.01 7.01 What is the…

A: Number of samples (n) = 10. X X2 7.08 50.1264 7.07 49.9849 6.98 48.7204 7 49 7.1 50.41…

Q: Find the sample mean, sample variance, and sample standard deviation of the given data set: 1. 4 10…

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Q: The following data give the worldwide number of fatal airline accidents of commercially scheduled…

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Q: The following data gives the scores of 13 students in a Biostatistics exam.75 80 28 70 95 82 75 64…

A: Introduction: For a sample of n observations in a sample with values, say x1, x2, …, xn, the sample…

Q: Consider the following frequency distribution for a sample of 20 observations Class 0 < 5 5 < 10 10…

A: Given: The data given is as follows Classes Frequency 0 - 5 5 5 - 10 6 10 - 15 9

Q: The following values represent the daily wages of a sample of workers, the sample mean is OMR 30. 27…

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Q: Here is a set of sample data 8 11 23 24 29 31 53 55 65 68 80 Identify the 5 number summary (min, Q1,…

A: Solution: The observation in increasing order is  8, 11, 23, 24, 29, 31, 53, 55, 65, 68, 80. n = 11…

Q: The data represent the 2011 salaries of basketball coaches of the following universities, entered in…

A: The formula for Range is, Range= Maximum value- Minimum Value The formula for Variance is,…

Q: Compute the population variance  for the following sample data, assuming the sample comprises the…

A:

Q: Consider the following frequency distribution for a sample of 20 observations Class 0<5 5 < 10 10 <…

A: Variance= E(X2)- (E(X))2 Where E(X)= summation (f*X)/(summation f) E(X2)= (Summation…

Q: 13. Given the list of the first quarter average of selected fifteen (15) Grade 11 Arts and Design…

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Q: Given the following dataset of the price of a gallon of gas: $2.85; $3.06; and $2.99. Calculate the…

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Q: The Personnel Officer of a company obtained a list of the 40 employees who had been recorded as…

A: The sample mean and median can be calculated in excel as follows: Step 1: Put the data onto the…

Q: 10. Given the following frequency table, the sample Variance (S') is 12 3 4 12 13 15 10

A: Obtain the value of the sample variance. The value of the sample variance is obtained below as…

Q: Consider the following data set: | 49.95 | 50.05 | 49.81 | 50.17 | 50.27 | 49.96 | 50.01 | 49.84 |…

A: Here given is a data set. We will use Excel to solve the problem. Enter the data into the…

Q: Two samples of scores on a survey are as follows: Sample A: 107 6 8| 7 |9 Sample B: 18 310|112 7 27.…

A: We have given that,  The data of sample B is,  18, 3, 10, 1, 12, 7 Then,  We will find the variance…

Q: Consider the following frequency distribution for a sample of 20 observations Class 0< 5 5< 10 10 <…

A: Here, Interval Frequency, f Midpoint, x fx x-x (x-x)2 f.(x-x)2 0-5 5 2.5 12.5 -6 36 180 05-10…

Q: the following are the scores of ten ABM students in their fourth-quarter examination: 26 37 45 35…

A: Solution: Let X be the scores. The given data is 26, 37, 45, 35, 31, 47, 23, 34, 44 and 38.

Q: Q) Consider the following ungrouped data: 18    11    22    19    24    24    23    10    11    16…

A: Mean is the average value around which the whole data set is concentrated. Mean for the set of 'n'…

Q: Find the sample variances of the data sets A and B given below. A:3, 4, 6, 7, 10 B:-20, 5, 15, 24

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Q: The following data give the weekly amounts spent on groceries for a sample of households. $271…

A: Solution :  For given data, let X : weekly amounts spent on groceries for a sample of households. a)…

Q: Find the 99% interval for the population variance with the data from the following sample. 35 17 45…

A: Given data  35 17 45 12 46 18 24 47 16 37 21 46 37 14 39 29…

Q: Hospitals The following set of data represents the number of hospitals for selected states. Find…

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Q: Given the following dataset which represents a sample ( n = 8) from a larger population: 188 122…

A: Given data : 188 122 147 45 66 190 167 91

Q: 11. Find population variance and SD for the following data. 11 - 16 17 - 22 12 23 -28 20 29 -34 18…

A: Given : X f Nov-16 5 17-22 12 23-28 20 29-34 18 35-40 5