MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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- You are a data analyst for the MLB and your boss asks you to analyze data related to stadium attendance and winning percentage. You obtain data on 30 MLB teams (see the data file for this project; this data is from the early 2000’s, so the teams might not reflect the current state). The file includes the cost of the team name, league, year the park was built, stadium capacity, average attendance, and winning percentage. You decide to calculate the correlation coefficient to see if the winning percentage and average attendance are related, and then the least squares regression line, in order to predict the winning percentage of a team whose average attendance is 65000. What to do: Prepare your summary of results, and make sure you include (1) the correlation and (2) an equation for predicting the winning percentage based on average attendance. What is (3) the expected winning percentage of a team whose average attendance is 65000? Does this seem reasonable?arrow_forwardWhat is the null hypothesis of a test for correlation? There is correlation in the population. There is positive correlation in the population. There is no correlation in the population. There is negative correlation in the population.arrow_forward1. Introduction to variability A researcher is studying psychological factors in artistic achievement among teenage girls. One variable he is particularly interested in is perseverance. What information does a measure of variability for the variable perseverance convey? Check all that apply. what is the most common value for the variable perseverance among teenage girls? What is the average value for the variable perseverance among teenage girls? What is the central tendency for the variable perseverance among teenage girls? How consistent are the values for perseverance among teenage girls?arrow_forward
- According to Total Gross Sales, what movies if any, should be considered high-performance outliers? Explain how you arrived at your answer mathematically.Round any calculations/data to two decimal values. Compute descriptive statistics showing the relationship between total gross sales and each of the other variables. These need to include the covariance and correlation coefficient. Discuss the relationships Movie Title Opening Gross Sales ($ millions) Total Gross Sales ($ millions) Number of Theaters Weeks in Release Rogue One: A Star Wars Story 155.08 532.18 4,157 20 Lion 0.12 51.74 1,802 24 Fences 0.13 57.68 2,368 15 Patriots Day 0.16 31.89 3,120 11 Manchester by the Sea 0.26 47.70 1,213 23 Moonlight (2016) 0.40 27.85 1,564 28 Hidden Figures 0.52 169.61 3,416 46 Hell or High Water 0.62 27.01 1,505 14 La La Land 0.88 151.10 3,236 20 Florence Foster Jenkins 6.60 27.38 1,528 11 Collateral Beauty 7.10 31.02 3,028 8 Mother's Day 8.37 32.49 3,291 7 Bridget…arrow_forwardWe calculate the central tendency and variability in order to provide a summary of a data set. Why is it important that we calculate both central tendency and variability?arrow_forwardWhat is meant by the statement, "Correlation does not imply causation"? Provide an example to illustrate your explanation.arrow_forward
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