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 ofsample values drawn from a population.Espary11u111.0 6.610-1.0 4.410+2.0 9.62.0 5.63.0 3.98+3.0 7.47+4.0 9.34.0 4.45.0 4.85.0 4.76.0 2.56.0 8.13+7.0 6.17.0 5.72+8.0 9.78.0 6.7Aa9.0 5.16 7 8 9 10 119.0 8.51 26.8.9 10 1110.0 7.8 Figure 110.0 7.7 Figure 2W t11m111.0 3.2101.0 8.310-2.0 4.52.0 6.98+3.0 3.53.0 7.97+4.0 5.164.0 6.15-5.0 4.35.0 6.74+6.0 6.73 X2+6.0 4.57.0 6.07.0 5.12-8.0 8.08.0 3.79.0 7.59 10 110.9.0 4.79 10 116.8.10.0 8.0 Figure 310.0 3.2 Figure 43.4.4. 89 10 1110.0 8.0 Figure 310.0 3.2 Figure 4Answer the following questions about the relationships between pairs of variables and the values of r, the sample correlation coefficient. The same responsemay be the correct answer for more than one question.(a) For which data set is the sample correlation coefficient r equal to – 1?|(Choose one)(b) Which data set indicates the strongest negative linear relationship between itstwo variables?(Choose one)(c) For which data set is the sample correlation coefficient r closest to 0?(Choose one)(d) For which data set is the sample correlation coefficient r closest to 1?(Choose one)9.

Solution: Scatter plot : The main purpose of scatter plot is to visualize the linear relationship…

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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Given the following data pairs (x, y): (1, 1.24), (2, 5.23), (3, 7.24), (4, 7.60), (5, 9.97), (6, 14.31), (7, 13.99),(8, 14.88), (9, 18.04), (10, 20.70) The coefficient of determination is strong. True False
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. 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?…
Use this dataset for your analysis software.Cost-to-charge ratio (the percentage of the amount billed that represents the actual cost) for inpatient and outpatient services at 11 Oregon hospitals is shown in the following table. A scatterplot of the data is also shown. Cost-to-Charge Ratio Hospital OutpatientCare InpatientCare 1 62 80 2 66 76 3 63 75 4 51 62 5 75 100 6 65 88 7 56 64 8 45 50 9 48 54 10 71 83 11 54 100 The least-squares regression line with y = inpatient cost-to-charge ratio and x = outpatient cost-to-charge ratio is = -1.1 + 1.29 x. (a) Is the observation for Hospital 11 an influential observation? Yes or No (b) Is the observation for Hospital 11 an outlier? Yes or No (c) Is the observation for Hospital 5 an influential observation? Yes or No (d) Is the observation for Hospital 5 an outlier? Yes or No
What is the mean, variance, and standard variation of this data?
The midterm and final exam grades for a statistics course are provided in the data set below. Jaymes, a student in the class, scored 86 on both exams. Treat the given data sets as samples. Midterm: 80, 78, 85, 82, 79, 79, 78, 86, 80, 84, 78, 84, 80, 84, 81, 78, 81, 82, 78, 84 Final: 81, 88, 68, 69, 69 81, 82, 86, 76, 71, 72, 68, 77, 86, 68, 83, 84, 71, 81, 87 z-score for midterm: 1.857 z-score for final: 1.181 Based on the z-scores calculated above, which of Jaymes's grades is more unusual, the midterm grade or the final exam grade? Select the correct answer below: A. The absolute value of the z-score for the final exam grade is greater than for the midterm grade, so the final exam grade is more unusual. B. The absolute value of the z-score for the midterm exam grade is less than for the final grade, so the midterm grade is more unusual. C. The absolute value of the z-score for the midterm exam grade is greater than for the final grade, so the midterm grade is more…
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…
I need the right answer for a and b.
Several years ago, the state of California launched an aggressively advertisement campaign against smoking. We've interviewed students from 16 college campuses in California and recorded for each campus the percentage of students who claimed that they had encountered assay least one anti smoking advertisement on campus in the past month. Here are those percentages. 53 39 30 49 48 42 41 38 26 36 40 42 52 51 45 50 Construct a box and whisker plot for the data.
(a) TV stations use ratings to decide which shows to keep or cancel. Therefore, the A. C. Nielsen Company collects data on the TV viewing habits of Americans and publishes the information in Nielsen Report on Television. Suppose that you want to use a paired sample to decide whether the mean viewing times of married men and married women differ: 1. Identify the variable. 2. Identify the two populations. 3. Identify the pairs. 4. Identify the paired-difference variable.
website monitors customer complaints and organizes these complaints into six distinct categories. Overthe past year, the company has received 534 complaints One possible graphical method for representing these data is a scatter plot. A. TRUE B. FALSE
What is the stem-and-leaf plot for the data set? Name Stanley Ben Prusiner Torsten Nils Wiesel Richard Axel 57 58 Robert Coleman Richards 59 James Alexander Mirrlees 60 O O Stem Stem 5 Stem 6 7 5 Stem 6 7 6 5 5 7 6 Age 55 7 Leaf 8 5 Leaf O O 0 O 5 Leaf O O Leaf 5 O O Name Age Robert Merton Solow 63 Stanley Cohen 64 Peter Mansfield 70 Vernon Lomax Smith 75 Richard Fred Heck 79 8 89 2 3 4 5 9 8 89 2 5 9 8 89 4 4 5 9 7 8 9 3 4 5 9

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