https://blackboard.albany.edu/bbcswebd....1. A random sample of size n =757478Ojay Suave - Twitchbany.edu7740759 yields the following observations:76R Grade Calculator747675Find two reasonable point estimates for the population mean .G calculatom

75, 74, 78, 77, 76, 75, 74, 76, 75

Answered: 1. A random sample of size n = 9 yields…

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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Consider the following set of ungrouped sample data. 4 4 3 4 0 2 1 6 5 7 A.) Find the mean and standard deviation of the ungrouped sample data. x = ______ (Type an integer or a decimal.) s = ______
Consider a data set containing the following values: 92 84 85 93 95 89 86 91 The mean of the preceding values is 89.375. The deviations from the mean have been calculated as follows: 2.625 –5.375 –4.375 3.625 5.625 –0.375 –3.375 1.625 If this is sample data, the sample variance is and the sample standard deviation is . If this is population data, the population variance is and the population standard deviation is . Suppose the largest value of 95 in the data was misrecorded as 93. If you were to recalculate the variance and standard deviation with the 93 instead of the 95, your new values for the variance and standard deviation would be .
b) The Mean Deviation (M.D) for the following homogeneous data (16, 15, 17, :12, 18, 10, 9, 35) is 3.204 O 3.125 O 5.125 5.204 O none of all above O
Three randomly selected children are surveyed. The ages of the children are 1, 4, and 10. Assume that samples of size n = 2 are randomly selected with replacement from the population of 1, 4, and 10. Listed below are the nine different samples. Complete parts (a) through (d). 1,1 1,4 1,10 4,1 4,4 4,10 10,1 10,4 10,10 a. Find the value of the population variance o². 14 (Round to three decimal places as needed.) b. Find the variance of each of the nine samples, then summarize the sampling distribution of the variances in the format of a table representing the probability distribution of the distinct variance values. ▼ E 2 ▼ F (Type integers or simplified fractions.) Probability ▼ C
1. Given n = 10, E, x? = 100, and = 1, compute the sample standard deviation s. 2. Given n = 100,E, 1? = 10000, and E, x; = 1000, compute the sample variance s². i3D1 i31
1. Using the population formula, calculate the mean, variance and standard deviation for the following grouped data:
4. Use Descriptive Statistic tool on the Data Analysis to find the following: d. Standard Deviation е. Variance f. Range g. Skewness Table: 88 62 63 88 65 85 83 76 72 63 60 46 85 71 67 75 78 87 70 42 63 90 63 60 73 55 62 62 83 79 78 40 51 56 80 90 47 48 54 77 86 55 76 52 76 40 52 72 43 60
B. Samples of size n were randomly selected from populations with means and variance given below. In each case, find the mean and variance of the sampling distribution of the means. 1. n= 4 2. n= 4 3. n= 4 4. n= 5 5. n = 6 議 µ = 5.5 µ = 7.5 p = 8.5 p = 15 H = 20 2 = 25 2 = 9 0? = 16 {? = 30 0? = 36
Consider a data set containing the following values: 60 93 84 80 95 99 78 90 The mean of the preceding values is 84.875. The deviations from the mean have been calculated as follows: -24.875 8.125 -0.875 -4.875 10.125 14.125 -6.875 5.125 If this is sample data, the sample variance is and the sample standard deviation is If this is population data, the population variance is and the population standard deviation is Suppose the smallest value of 60 in the data was misrecorded as 75. If you were to recalculate the variance and standard deviation with the 75 instead of the 60, your new values for the variance and standard deviation would be
Three randomly selected children are surveyed. The ages of the children are 2, 3, and 10. Assume that samples of size n = 2 are randomly selected with replacement from the population of 2, 3, and 10. Listed below are the nine different samples. Complete parts (a) through (d). 2,2 2,3 2,10 3,2 3,3 3,10 10,2 10,3 10,10 a. Find the value of the population variance o². (Round to three decimal places as needed.)
9.13 Given a sample size of 36, how large does the population standard deviation have to be in order for the standard error to be A. 1? B. 2? C. 5? D. 100?
A1

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1. A random sample of size n = 9 yields the following observations: 75 78 77 76 74 75 74 76 75 Find two reasonable point estimates for the population mean µ.