Q3) The following data represents thescore of 40 students in one exam267241596088354811843650619570465628149127223977446045906343887186706955* :c) The Mode is75 O73 74872975.57676.5 Onone of all above O

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Answered: Q3) The following data represents the…

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 following data represents the times it took some rats to complete a maze (in seconds).64, 70, 81, 76, 69, 81, 75, 58, 63, 68, 72, 86a) What is the mean time? b) Give the 5-number summary of the data.Show your work. Label your numbers.
4
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6. The following table shows the marks of 12 students in Accounts and' Q.T. . Determine the coefficient of correlation. Marks in 65 40 35 75 65 80 35 20 85 65 55 33 ассоuntancy Marks in Q.T 30 55 68 28 76 25 80 85 2035 45 65
A researcher wanted to find the effect of a special diet on systolic blood pressure. She selected a sample of seven adults and put them on this dietary plan for 3 months. The following table gives the systolic blood pressures (in mm Hg) of these seven adults before and after the com- pletion of this plan. Before After 210 193 180 186 195 186 220 223 231 220 199 183 224 233 Let u be the mean reduction in the systolic blood pressures due to this special dietary plan for the population of all adults. Construct a 95% confidence interval for ud. Assume that the population of paired differences is (approximately) normally distributed.
7) Students in a class were divided in two batches of 10. One batch was given a quiz in the morning before their lectures and the same quiz was given to the other batch in the afternoon after their lectures. The quiz scores out of 10 are given below. Morning Batch Afternoon Batch Scores Scores 658.5 7 9 55 2.5 | 10| 10| 4.5 |5.5 9.5 6.5 10 8.5 7 8 Use the run test to determine whether the time of the quiz has an effect on the scores. 3
It is known that 9 out of 10 people are right handed. Would 35 right handed people out of group of 93 be considered significantly low, significantly high, or neither? Show your work below.
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The following test scores are for two classes that took the same test. (The highest possible score on the test was 60.) Class 1 (24 scores): 37, 46, 54, 55, 15, 55, 44, 55, 37, 26, 52, 44, 31, 23, 44, 52, 41, 41, 30, 50, 41, 41, 41, 41 Class 2 (25 scores): 50, 40, 40, 25, 40, 57, 31, 31, 40, 31, 33, 33, 57, 33, 34, 34, 57, 29, 34, 41, 41, 58, 41, 34, 45 Form a back-to-back stem and leaf plot with one stem. Put the leaves for one class on the right side of the stem and the leaves for the other class on the left side. Record the leaves in increasing order from the stem. Leaf (Class 1) Stem Leaf (Class 2) 3 2 1
The following contingency table represents a cross-classification of hair color and eye color males. Is there an association between hair and eye color in males? Hair Color Eye Color H1 Н2 H3 H4 E1 1768 807 189 47 E2 946 1387 746 53 ЕЗ 115 438 288 16

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Q3) The following data represents the score of 40 students in one exam 26 72 41 59 60 88 35 48 11 84 36 50 61 95 70 46 56 28 14 91 27 22 39 77 44 60 45 90 63 43 88 71 86 70 69 55 * :c) The Mode is 75 O 73 74 87 29 75.5 76 76.5 O none of all above