1. In a study on speed control, it was found that the main reasons for regulations were to make traffic flowmore efficient and to minimize the risk of danger. An area that was focused on in the study was thedistance required to completely stop a vehicle at various speeds. Use the following table to answer thequestions.Braking distance (feet)MPH202030454081501336020580411Assume MPH is going to be used to predict stopping distance.a. Which of the two variables is the independent variable?b. Which is the dependent variable?c. What type of variable is the independent variable?d. What type of variable is the dependent variable?e. Construct a scatter plot for the data.f. Is there a linear relationship between the two variables?g. Compute the value of r.2. A researcher wants to see if there is a relationship between the number of new productions onBroadway in any given year and the attendance for the season. The data below were recorded for aselected number of years. Based on these data, can you conclude a relationship between the numberof new productions in a season and the attendance?No. of new61 60 50 37productions54 67 6054Attendance(millions)7.4 8.2 7.1 8.8 9.6 11 8.4 7.4a. Draw the scatter plot for the variables and determine the relation present.b. Compute the value of the correlation coefficient.3. The yearly data have been published showing the number of releases for each of the commercialmovie studios and the gross receipts for those studios thus far. Based on these data, can it beconcluded that there is a relationship between the number of releases and the gross receipts?No. of releases x | 361 270 306 22 35 10 8 12 21Gross receipts y(million S)| 3844 1962 1371 1064 334 241 188 154 125a. Draw the scatter plot for the variables and determine the relation present.b. Compute the value of the correlation coefficient. 3. Find the critical value (or values) for the t test for each.a. n = 10, a = 0.05, right-tailedb. n = 18, a = 0.10, two-tailedc.n = 6, a = 0.01, left-tailedd. n = 9, a =0.025, right-tailede.n = 15, a = 0.05, two-tailedf.n = 23, a = 0.005, left-tailedg. n = 28, a = 0.01, two-tailedh.n = 17, a = 0.02, two-tailed4. A state executive claims that the average number of acres in western Pennsylvania stateparks is less than 2000 acres. A random sample of five parks is selected, and the number ofacres is shown. At a = 0.01, is there enough evidence to support the claim?959 1187 4936249 5415. Men spend an average of 29 minutes per day on weekends and holidays exercising andplaying sports. They spend an average of 23 minutes per day reading. A random sample of 25men resulted in a mean of 35 minutes exercising with a standard deviation of 6.9 minutes andan average of 20.5 minutes reading with s = 7.2 minutes. At a = 0.05 for both, is there sufficientevidence that these two results differ from the national means?

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1. In a study on speed control, it was found that the main reasons for regulations were to make traffic flow more efficient and to minimize the risk of danger. An area that was focused on in the study was the distance required to completely stop a vehicle at various speeds. Use the following table to answer the questions. MPH Braking distance (feet) 20 30 40 50 20 45 133 205 411 60 80 Assume MPH is going to be used to predict stopping distance. a. Which of the two variables is the independent variable? b. Which is the dependent variable? c. What type of variable is the independent variable?

1. In a study on speed control, it was found that the main reasons for regulations were to make traffic flow more efficient and to minimize the risk of danger. An area that was focused on in the study was the distance required to completely stop a vehicle at various speeds. Use the following table to answer the questions. MPH Braking distance (feet) 20 30 40 50 20 45 133 205 411 60 80 Assume MPH is going to be used to predict stopping distance. a. Which of the two variables is the independent variable? b. Which is the dependent variable? c. What type of variable is the independent variable?

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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