b. There are 30 samples.d. 30% of the population3. Ifa sample size 5 is drawn from a population of 55, determine the varianceof the sample means if the population variance is equal to 67?b. 12.4d. 18.5c.55.44. How many different samples of size 6 can be selected from a population of 97a. 21.4b. 94c. 1045. How many samples must be included in a research if a margin of error equalsa. 84d.114.65% will be applied in 975 total subjects?a B4b. 104c. 284d. 123XINIHNIALCAME

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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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The Variance of Population for the following data:X = 155, 175, 125, 155, 175, %3D 195, 185, 525, 255, 425, 355, 455 is : * O 19350 O 15403 O 18600 O 17400
A grouped frequency distribution has the following values calculated: Sfm = 10450 Sfm2 = 4598000 n = 25 The variance is closest to: A 8456.5 B. 9730.1 C 979 D. 9579.2
If an analysis of variance is used for the following data, what would be the effect of changing the value of M2 to 20? Sample Data M1 = 10 M2 = 15 SS1 = 90 SS2 = 70 a. Increase SSbetween and increase the size of the F-ratio. b. Increase SSbetween and decrease the size of the F-ratio. c. Decrease SSbetween and increase the size of the F-ratio. d. Decrease SSbetween and decrease the size of the F-ratio.
Exhibit 11-3 The contents of a sample of 26 cans of apple juice showed a standard deviation of 0.06 ounce. We are interested in testing to determine whether the variance of the population is significantly more than .003. Refer to Exhibit 11-3. The p-value for this test is a) .05 b) greater than .10 c) less than .10 d) 1.96
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.)
Consider the following population data; 0, -4, 2, -8, 10 a) Calculate the population variance. b) Calculate the population standard deviation
Part I A bakery sells homemade bread by the loaf and sales are uniformly distributed between 200 and 600 loaves per day. a. Find the probability of selling 240 loaves on a given day. b. Find the probability of selling between 250 and 260 loaves per day Part II The golf balls produced by TruGolf have a mean distance of 250 meters and a variance of 625 meters. c. How large a sample of TruGolf balls should be taken if they want to estimate with 90% confidence the mean distance to within 8 meters? d A random sample of 40 balls from TruGolf are selected. Find the Bound of Error when the confidence level is 95% for TruGolf
A fair coin is tossed three times. Let X denote 0 or 1 according as a head or a Tail occurs onthe first toss, and let Y denote the number of heads which occur. Determine the following: a. the distribution of X and Y;b. E(X) and E(Y);c. Variance and SD of X; andd. Variance and SD of Y
13
2.Find the variances if the standard deviation are: a.s = 7.3 s2 %3D %3D b.s = 6.9 %3D
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Thirty percent of the students in a class of 100 are planning to go to graduate school. The Variance of this binomial distribution is: A. 16 B. 21 C. 25 D. 36 Cat

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Ifa sample size 5 is drawn from a population of 55, determine the variance of the sample means if the population variance is equal to 677 a. 21.4 b. 12.4 c.55.4 d. 18.5