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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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Compute the median of 15, 56, 42, 49, 42, 34
i need in words not handwritten no pic
Write a short note on interview Methods
On the following pages you are presented with five problems. Your job is to examine the output and discuss whether there is a statistically significant relationship between the two variables, the pattern or direction of the relationship if the relationship is significant, and the strength of the relationship if the relationship is significant. AS you discuss the strength of the relationship, you will rely on an appropriate measure of association from those that have been given. For that determination, you will need to appropriately determine the level of measurement of each of the variables being examined. Please use the Measures of Association Chart I provided to help you with your determination. You may write your responses on a separate document or next to the problems on this one.
1. Repeat the steps from tab #1 using this data to construct a scatter plot graph and calculate the correlation coefficient R. (Recall the correlation coefficient is R and not R2) Principals x Teachers y 77.8 43.7 78.4 43.8 80.8 45.0 80.5 45.6 R=0.997497 81.5 45.9 2. Does the R value represent a positive, negative or no correlation between the salaries of the teachers and principals? As teacher salaries increase, what happens to 84.8 48.2 87.7 49.3 prinicipal salaries? 91.6 51.3 93.6 52.9 3. Write the equation of the regression line for the data below. The equation is y= 95.7 54.4 95.7 54.2 4. Use the regression equation that you found in exercise #3 to predict the average annual salary of public school classroom teachers when the average annual salary of public school principals is $139,723. Show your work in the cells to the right. (Be careful when entering the x-value in the equation. The table shows numbers that have been adjusted in terms of the thousands. Example: if the salary…
Ages of students in a business math class are: 25, 19, 22, 32, 28, 19, 19, 20, 41, 20, 19, 73, 19, 34, 21, and 37. a) What is the mean?, b) What is the median?, c) What is the Mode?
Use the Student_Data which consists of 200 MBA students at Whatsamattu U. It includes variables regarding their age, gender, major, GPA, Bachelors GPA, course load, English speaking status, family, and weekly hours spent studying. Perform a categorical analysis on the majors of students enrolled in the MBA. Describe your findings. 101 0 No Major Unemployed 53 3.01 3.15 6 0 102 0 Leadership Full Time 30 3.3 3.35 6 1 103 0 No Major Part Time 32 3.62 3.6 7 0 104 0 Leadership Full Time 42 3.21 3.4 7 1 105 0 Leadership Full Time 56 3.39 3.4 7 1 106 0 No Major Full Time 46 3.65 3.8 8 1 107 0 Leadership Full Time 49 3.47 3.7 8 1 108 0 No Major Part Time 32 3.44 3.6 7 0 109 0 No Major Full Time 36 3.88 3.95 9 1 110 0 Leadership Full Time 42 3.83 3.95 9 1 111 0 No Major Part Time 37 3.53 3.6 7 0 112 0 No Major Full Time 31 3.22 3.3 6 1 113 0 No Major Full Time 31 3.56 3.8 8 1 114 0 No Major Unemployed 42 3.2 3.25 6 0 115 0 No Major Full Time 39 3.17 3.3 6…
Consider any research statement and specify the variable, types of variables and population in that statement?
Boand The Calege Entrance Examination Board was not involved in the production of this material Used with permission Copynight 2010 National Math Science Intative, Dalas, Texas. All rights reserved. Visit us online at www.nms.org. AP is a trademark of the College Entrance Ex atistics StatCorp Exploration Below are the monthly salaries for all 16 employees of the StatCorp Data Analysis Corporation. Answer the questions that follow by yourself or with a partner. Monthly salaries: 6,350 6,125 6,500 2,800 12,800 7,500 5,859 7,400 5,760 7,350 7,250 6,000 2,500 2,500 5,230 5,100 1. Find the mean, median., and standard deviation of employee's salaries. mean = median = standard deviation = 2. Business has been good, so every emplovee receives a raise of $1,000. What will happen to the mean, median, and standard deviation? The mean will The median will The standard deviation will Check yourself: median = standard deviation = mean = 3. Business has not been good. Suppose that we must cut…
4. The numbers of incorrect answers on a true-false test for 15 students were recorded as follows: 2, 1, 3, 0, 1, 3, 6, 0, 3, 3, 5, 2, 1, 4, 2. Find the median and the mode.
Theory of attribute . Class and class frequencies. Forumlas .....
How many days were 20 up to 25 packages shipped? What is the relative frequency of days in the 20 up to 25 class? Note: Round your answer to 2 decimal places. What is the midpoint of the 15 up to 20 class? Note: Round your answer to 1 decimal place. On how many days were there 10 or more packages shipped?

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