Below are four bivariate data sets and their scatter plots. (Note that all of the scatter plots are displayed with the same scale.) Each data set is made up of sample values drawn from a population.- **Figure 1:** - Data set (x, y) - (10, 5.0) - (8.0, 4.1) - (13.0, 7.4) - (9.0, 4.7) - (11.0, 5.3) - (14.0, 9.0) - (6.0, 4.1) - (4.0, 3.0) - (12.0, 6.5) - (7.0, 4.4) - (5.0, 3.8) - Scatter plot: Displays a clear negative linear trend.- **Figure 2:** - Data set (u, v) - (10.0, 27.0) - (2.0, 42.0) - (3.0, 33.0) - (4.0, 52.0) - (5.0, 41.0) - (6.0, 69.0) - (7.0, 60.0) - (8.0, 74.0) - (9.0, 72.0) - (10.0, 80.0) - Scatter plot: Displays a moderate positive linear trend.- **Figure 3:** - Data set (w, p) - (1.0, 7.8) - (2.0, 9.0) - (3.0, 7.4) - (4.0, 5.2) - (5.0, 8.2) - (6.0, 6.0) - (7.0, 4.5) - (8.0, 8.5) - (9.0, 8.6) - (10.0, 5.4) - Scatter plot: Displays a potential nonlinear pattern.- **Figure 4:

If the points in the scatterplot are towards in downward direction, then there is a perfect negative…

Answered: Below are four bivariate data sets and…

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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Here is a bivariate data set. y 16.7 60.4 59.3 -28.7 29.2 110.3 36.2 -12.5 22.5 13.4 31.5 103.6 56.6 37.1 39.5 14.5 29.9 110.6 52.3 69.2 39.5 84.5 66.6 45.1 45.6 35 43.4 50.1 106.3 49.4 37.3 33.3 38 79.6 46.9 54.6 45.4 65.3 105.4 Find the correlation coefficient and report it accurate to two decimal places.
Please use the accompanying Excel data set or accompanying Text file data set when completing the following exercise. The overall distance traveled by a golf ball is tested by hitting the ball with Iron Byron, a mechanical golfer with a swing that is said to emulate the legendary champion, Byron Nelson. Ten randomly selected balls of two brands are tested and the overall distance measured. Assume that the variances are equal. The data follow: Brand 1: 284 295 287 271 283 271 279 275 263 267 Brand 2: 262 246 260 265 273 281 271 270 263 268 (a) Is there evidence to show that there is a difference in the mean overall distance of brands? Use a = 0.05. (b) Calculate a 95% two-sided confidence interval on the difference in mean overall distance. Round your answer to one decimal place (e.g. 98.7).
Consider a sample with data values of 29, 27, 22, 17, 32, 38, 30, and 27. Compute the 20th, 25th, 65th, and 75th percentiles. Step 1 Recall that a percentile gives insight to how data are spread between the smallest and largest values. The pth percentile of a set of data indicates that p% of the data are below that value, and (100 − p)% are above that value. There are two components of the pth percentile: the location within the data and the actual value. The formula for finding the location of the percentile, denoted Lp, follows where p is the percentile and n is the number of observations in the ordered data set. Lp = p 100 (n + 1) The first step in calculating a percentile is to order the data in ascending order. The ordered data are below. 17 22 27 27 29 30 32 38 There are n = 8 observations in the data. Find the location of the p = 20th percentile. Lp = p 100 (n + 1) L20 = 20 100 + 1 =
Please show your work!
Below are four bivariate data sets and their scatter plots. (Note that all of the scatter plots are displayed with the same scale.) Each data set is made up of sample values drawn from a population. 1.0 8.1 2.0 6.9 3.0 7.5 1.0 6.5 2.0 9.8 1. 3.0 3.4 4.0 6.1 1. 5.0 7.2 4.0 8.8 5.0 5.2 6.0 4.5 6.0 2.0 7.0 4.8 7.0 6.0 24 8.0 3.2 8.0 10.0 9.0 4.7 10.0 7.9 Figure 2 9.0 4.4 10.0 2.9 Figure 1 1.0 4.3 1.0 3.0 2.0 4.3 3.0 3.6 4.0 5.5 2.0 6.1 3.0 7.3 4.0 4.5 5.0 5.0 6.0 8.1 7.0 5.7 8.0 7.4 9.0 8.9 10.0 7.7 Figure 3 5.0 4.4 6.0 7.3 7.0 5.7 8.0 7.9 9.0 7.5 10.0 8.1 Figure 4 Continue Submit
17 For the Park City basketball team, scores for the last 30 games were as follows (smallest to largest): 32; 32; 33; 34; 38; 40; 42: 42; 43; 44; 46; 47; 47; 48; 48; 48; 49; 50; 50; 51; 52; 52; 52; 53; 54; 56; 57; 57; 60; 61 Construct a stem plot for the data.
Below are four bivariate data sets and their scatter plots. (Note that all of the scatter plots are displayed with the same scale.) Each data set is made up of sample values drawn from a population. х у 1.0 | 1.0 2.0 2.0 u v 1.0 3.8 11 T 11– 10 10- 2.0 6.1 9. 8 3.0 3.0 4.0 | 4.0 3.0 7.0 7+ 7+ 4.0 4.5 6+ 5+ 5+ 5.0 5.0 5.0 5.0 4 6.0 | 6.0 6.0 8.2 + + + + + + 7.0 |7.0 7.0 5.7 8.0 | 8.0 8.0 6.5 10 i 10 11 9.0 9.0 9.0 8.7 |10.0 10.0 Figure 1 10.0 7.4 Figure 2 w t 1.0 8.1 m 11- 10+ 9- 11- 1.0 4.4 10- x X x x 2.0 6.6 2.0 6.2 9- 8+ X 8. | 3.0 7.9 3.0 8.2 4.0 5.6 6+ 4.0 9.4 6- 5+ 5.0 7.5 5.0 9.7 4 4 - 6.0 4.5 6.0 9.5 3 2 7.0 5.0 7.0 9.5 2- 8.0 3.7 8.0 8.3 10 i 10 11 9.0 4.4 9.0 6.0 |10.0 2.8 Figure 3 10.0 4.2 Figure 4 Answer the following questions. The same response may be the correct answer for more than one question. (a) In which data set is there evidence of a strong nonlinear relationship between the two variables? (Choose one) the x, y data set (b) the u, v data set the w, t data set…
The normal monthly precipitation (in inches) for August is listed for 20 different U.S. cities: 0.4 1.0 1.5 1.6 2.0 2.2 2.4 2.7 3.4 3.4 3.5 3.6 3.6 3.7 3.7 3.9 4.1 4.2 4.2 7.0 Construct a boxplot for the data set. O O O 0.4 0.4 2.0 0.4 2.1 0.4 2.0 2.9 2.85 2.1 3.4 3.7 3.7 7.0 3.8 7.0 3.45 3.8 7.0 7.0
Below are four bivariate data sets and their scatter plots. (Note that all of the scatter plots are displayed with the same scale.) Each data set is made up of sample values drawn from a population. X y 1.0 6.4 10- 11- 10- X 1.0 7.8 9 2.0 9.7 9 2.0 6.8 8+ 8. 3.0 3.6 7. 3.0 7.6 7+ 4.0 8.5 6- 4.0 6.0 6. 5. 5 5.0 5.3 5.0 6.9 x x 4. 4 6.0 2.1 3 6.0 4.6 3 2. 2 7.0 6.2 7.0 4.7 1. 1 8.0 9.9 8.0 3.7 0 0 9.0 5.0 9.0 4.4 10.0 8.1 Figure 1 10.0 2.9 Figure 2 W t mn 11- 11- 1.0 3.4 10- 1.0 4.2 10- 9+ 2.0 4.6 9 2.0 6.1 8+ 8. 3.0 3.6 7+ 3.0 7.4 7 6+ 4.0 4.6 6+ 4.0 4.9 5. 5.0 4.7 5 4. X 5.0 4.8 4 6.0 7.1 3. 6.0 8.1 3. 2. 2 7.0 6.0 7.0 5.5 1. 1 8.0 7.9 m 8.0 7.0 0 16 0 9.0 7.1 9.0 9.1 10.0 8.0 Figure 3 10.0 7.6 Figure 4 Answer the following questions about the relationships between pairs of variables and the values of r, the sample correlation coefficient. The same response may be the correct answer for more than one question. (a) For which data set is the sample correlation coefficient r closest to 0?…
State whether the following Scatter plot has: 1- Positive correlation 2- Negative correlation 3 No correlation Next Question
Below are four bivariate data sets and their scatter plots. (Note that all of the scatter plots are displayed with the same scale.) Each data set is made up of sample values drawn from a population. x y 1.0 8.4 10+ 9+ 2.0 5.2 8+ 3.0 10.5 7- 4.0 6.2 5.0 2.1 6.0 4.6 7.0 9.1 8.0 3.9 9.0 9.3 10.0 7.2 Figure 1 ANN W t 1.0 8.0 2.0 9.1 3.0 6.7 4.0 5.6 5.0 8.2 6.0 4.7 6 5 4 3. 2+ 1 11- 10+ 9- 8. 7+ 6+ 5 4 3 2 1. X 0 1 2 7.0 4.4 8.0 7.0 9.0 5.7 10.0 3.8 Figure 3 X X X 3 X + 2 3 X 4 x 4 X X + 5 X xx 5 6 7 8 9 10 X X 6 7 8 0 X 10 11 X W 9 10 11 V u 1.0 2.9 2.0 4.7 3.0 3.8 4.0 4.9 5.0 4.4 6.0 6.8 7.0 6.0 8.0 7.4 9.0 7.0 10.0 7.8 Figure 2 11 10+ 9+ 8- 7+ 6+ 5+ 4+ 3 X 2+ 1 0 1 m n 1.0 8.0 2.0 7.0 3.0 7.8 4.0 5.7 5.0 6.8 6.0 4.8 7.0 4.9 8.0 3.7 9.0 4.7 10.0 2.9 Figure 4 71 11- 10+ 9+ 8+ X 7+ 6+ 5+ 4+ 3+ 2+ 1 2 X 3 4 5 X 6 7 x x 8 + 9 10 11 24 PPL + + + 3 4 5 6 7 8 9 10 11 Answer the following questions about the relationships between pairs of variables and the values of r, the sample correlation…
Below are four bivariate data sets and their scatter plots. (Note that all of the scatter plots are displayed with the same scale.) Each data set is made up of sample values drawn from a population. y II 1.0 8.1 2.0 7.0 1.0 3.9 10+ 10- 9- 2.0 5.5 8- 9- 8+ X 3.0 7.0 4.0 4.7 3.0 7.9 4.0 6.1 5.0 6.7 6.0 4.5 7.0 4.7 8.0 3.2 9.0 4.1 10.0 2.6 Figure 2 7- 6- 6- 5.0 5.1 6.0 8.0 7.0 5.4 8.0 6.9 3- 3- 2- 2- 9.0 8.7 10.0 7.9 Figure 1 1.0 3.0 2.0 4.3 3.0 3.7 4.0 5.0 5.0 4.5 6.0 7.4 7.0 6.0 8.0 7.9 9.0 6.6 10.0 8.3 Figure 3 1.0 7.7 2.0 4.6 3.0 10.0 4.0 5.9 10+ 10+ 9- 8+ 7- 6+ 6- 5- S- 5.0 1.8 4- 4- 6.0 5.2 7.0 9.2 8.0 3.3 9.0 9.2 10.0 6.6 Figure 4 3+ x 3- 2- 1- Answer the following questions about the relationships between pairs of variables and the values of 7, the sample correlation coefficient. The same response may be the correct answer for more than one question. |(a) Which data set indicates the strongest positive linear relationship between its two variables? ? (Choose one) (b) For which…

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