Rangend VarianceFind the range and the sample variance of the following data usts1.2 430252. 35-24 83.68046

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Answered: Range nd Variance Find the range and…

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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Find the sample variance and the standard deviation for the following sample. Round the answers to at least two decimal places as needed. 16 30 22 18 11 10 Send data to Excel The sample variance is The sample standard deviation is
35| 29 26| 33 29 27 30 22 19 29 29 29 32| 29 29 33 25 19 19 22 Find the Mean, Median, Mode, Midrange, Variance and Standard Deviation of the data. Round to 2 decimal places if necessary. Mean: Median: Mode: Midrange: Variance: Standard Deviation:
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Perform each task, given the following sample data. (Round your answers to one decimal place.) 6 11 12 12 10 17 9 (a) Use the Sample Variance Definition to find the variance and standard deviation of the data. variance standard deviation (b) Use the Alternative Formula for Sample Variance to find the variance and standard deviation of the data. variance standard deviation
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Read and analyze the following situation and supply the values of the following variable in the second column. Determine whether the following statements have a known or unknown population variance and provide a brief explanation to the mean by writing σx--,when the population variance is known ans sx-- when the population variance is unknown Situation Given Answer Standard Error Formula Consider a population consisting of 15, 2,12,4,5,8,6,9 and 17. Samples of size 5 are drawn from this population N= n= Given the populationmean of 98 and a sample standard deviation 2 in a sample size of 45 n= μ= s= A population composed of 10 items whose, measurement are 12,11,15,8,20,23,18,13,22 and 10. Samples of 6 items are drawn at random without replacement. N= n=
The range of the sample data is what Listed below are the top 10 annual salaries (in millions of dollars) of TV personalities. Find the range, variance, and standard deviation for the sample data. Given that these are the top 10 salaries, do we know anything about the variation of salaries of TV personalities in general? 39 38 36 29 19 18 15 11 10.7 9.9
: Which one of the following statements is True? The units of the Variance are the same as the original data. The Mean can be found from a Box Plot. Relative Frequency equals Frequency multiplied by Total Frequency. An Ogive chart increases in height from left to right. For a unimodal mound shaped distribution that is Skewed Left the Mean is greater than the Median.
64 34 34 50 41 56 64 xᵢ 54 40 42 61 63 64 35 40 32 47 45 56 One of the observations (xᵢ) is left blank. The sample mean is x̅ = 47.25 Find the missing number. 31 The sample variance is_________. a 150.758 b 157.039 c 163.583 d 170.399
Cigarette Taxes The increases (in cents) in cigarette taxes for 14 states in a 6-month period are , 51 , 60 , 12 , 20 , 30 , 40 , 32 , 34 , 42 , 45 , 50 , 40 , 18 31 (a) Find the range. The range is . (b) Find the variance and the standard deviation. Assume the data represent samples, and use the shortcut formula for the unbiased estimator to compute the variance and standard deviation. Round your answers to at least one decimal place. The variance is /The standard deviation is (c) Use the range rule of thumb to estimate the standard deviation. Round your answer to one decimal place. Using the range rule of thumb, ≈s. (d) Compare the estimate to the actual standard deviation. The range rule of thumb ▼(Choose one) a reasonable estimate for the standard deviation for this data.
Procedure answer options: one mean z hypothesis one mean T hypothesis one variance x2 hypothesis one proportion z hypothesis Test is a ? two tailed or left tailed or right tailed step 3: z0 t0 xo2
Sample grade point averages for ten male students and ten female students are listed. Find the coefficient of variation for each of the two data sets. Then compare the results. Males 2.3 3.8 3.9 3.7 2.6 2.4 3.6 3.2 3.9 1.8 Females 2.7 3.6 2.2 3.9 3.7 4.2 1.9 3.9 3.6 2.1 ... The coefficient of variation for males is %. (Round to one decimal place as needed.) The coefficient of variation for females is %. (Round to one decimal place as needed.) Compare the variability of grade point averages of males and females. Choose the correct answer below. O A. The grade point averages of females and males have the same variation. O B. The grade point averages of males are more variable than females. O C. The grade point averages of females and males do not vary. O D. The grade point averages of females are more variable than males.

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Range nd Variance Find the range and the sample variance of the following data usts 1.2 43025 2. 35-24 8 3.680 46