4. Which of these trend lines best matches the scatter plot?1412108212O620tyDA2C244A Trend line AOB. Trend line BOC. Trend line COD Trend line D6 860810 1210#12 1414121086201210B60200yB2D24468108 1012 141214

Answered: Image /qna-images/answer/60c53c98-8c22-4431-ac55-4b61033f1236.jpg

Answered: 4. Which of these trend lines best…

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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(a) Find the five-number summary, and (b) draw a box-and-whisker plot of the data. 388 4 29 8 6 9 4932529 8 779 0 (a) Min = (Simplify your answer.) Q, = (Simplify your answer. Do not round.) Q2 = (Simplify your answer. Do not round.) Q3 = (Simplify your answer. Do not round.) Max = (Simplify your answer.) (b) Choose the correct box-and-whisker plot below. OD. Oc. O A OB.
The data to the right shows the number of graduating students with business majors at a university over the last 15 years. 277 269 263 256 247 241 236 230 224 214 208 202 a. Construct a box-and-whisker plot for this data. b. Identify the five-number summary. 197 187 182 斯 a) Choose the correct box-and-whisker plot of the data below. C. O B. OA. 150 200 250 300 150 200 250 300 150 200 250 300 b) The five-number summary is (Use ascending order.)
The following is data for the first and second Quiz scores for 8 students in a class. First Quiz (Q1) Second Quiz (Q2) 15 15 16 13 17 15 22 21 24 24 26 21 29 27 30 27 Plot the points in the grid below, then sketch a line that best fits the data. Use the line above to predict the value of the second quiz score if a student had a score of 1212 on the first test. (Please enter a whole number)
4b62-a72b- Anthony records the number of misspelled words per page in a short story. Below is the data. Provide your answer below: Frequency 14 13 12 13- --12- Make a dot plot that represents the misspelled word data. -11- -10- -9- -8- -7- 1 6- 1 6 LO 5 3 3 4 7 3 4 1 2 6 2 2 1 3 3
47. The following table shows the scores on a clerical aptitude test and grades in a clerical skills course for 11 business administration students. Aptitude Test Score (x) 71 77 67 76 60 72 95 85 91 83 71 Skills Course Score (y) 73 85 74 82 70 83 92 85 97 89 79 a. Sketch the data using scatter diagram. b. Determine whether the data provide sufficient evidence to indicate that clerical aptitude test score and clerical skills course score are linearly related using 0.01 level of significance. C. Find the regression line. 48. The city engineer wants to establish the relationship between household size and monthly household water consumption. Given the data in the table, determine the following: Plot the data in a scatter plot and find the correlation r. Determine whether we can conclude from these data that the two variables are linearly related at 0.05 level of significance. Find the regression line. a. b. C. Household size (x) Gallons of Water Used (y) C. 3 3 4 8 7 655 700 500 800 600…
SECTION A: THEORY. 1. A) The amount of time it takes students to complete a Statistics II quiz is uniformly distributed between 30 to 60 minutes. One student is selected at random. Find the following: d. The probability that the student requires at least 45 minutes to complete the quiz. The probability that the student completes the quiz exactly 52 minutes. f. Compute the expected time and the coefficient of variation to complete the quiz. B) Using 95% confidence, how large a sample should be taken to obtain a margin of error for the estimation of a population proportion of .065? Assume that the data are not available for developing the planning value for r
1. The table below gives the number of hours a student spent studying for a test and their grade. a.) Draw a scatter plot of the data. Hours Spent Studying 3 2 2 5 1 0.5 4 3 Grade on Exam 84 77 92 70 60 90 75 b.) Draw the best fit line through the points (5,92) and (1, 70). Grade on Exam 90 80 70 60 c.) Is the correlation positive, negative, or none? f.) Write the equation of the best fit line. 50 d.) Find the slope of the best fit line: (5, 92) & (1,70) (round to one decimal) 0 2 4 6 8 10 Hours Spent Studying e.) What does the slope mean? T1-04 Plus TEXAS g.) Predict the grade for a student who studied for 2.5 hours. Is this an extrapolation or interpolation?
(a) Find the five-number summary, and (b) draw a box-and-whisker plot of the data. 4 8 8529 8 79 6 9 4 2 6 2 9 8779 0 (a) Min = 2 (Simplify your answer.) = 4.25 (Simplify your answer. Do not round.) Q2= 7 (Simplify your answer. Do not round.) Q3 = 8.75 (Simplify your answer. Do not round.) Max = (Simplify your answer.)
Which statement is true about the dot plot? 1 2 3 4 5 O The data is fairly uniform. O The mean is greater than the median. O No conclusions can be drawn from the data. O The mode and the median of the data are the same.
12. MS. Pettipiece wants to see if there is correlation between the students overall Data mark (in percent) in his class and the Grade 11 math mark (in percent). The following data was collected and graphed/ Scatter Plot Collection 1 Collection 1 100 Grade11 Data 90- 67 71 60 79 80- 80 93 :- 70- 69 72 74 66 60- 9. 86 79 50 7 86 89 40 78 67 90 91 55 60 65 70 75 80 85 90 95 Grade11 10 63 70 201 10- 11 72 63 12 76 0- 13 70 75 -10- 14 84 86 -20 15 55 43 55 60 65 70 75 80 85 90 95 Grade11 - Data = 0.866Grade11 + 11: r= 0.50 Discuss the correlation between the Data mark and the Grade 11 mark. Make sure to reference the coefficients of correlation and/or determination in your discussion. Residual Data
1) Which scatter plot shows a positive correlation? A. В. 20- 20 16 16 14 14 12 12 10 10 Number of Students Number of Students C. D. 20 20 18 18 36 16 14 14 12 12 10 10- Number of Students Number of Students Minutes Required Minutes Required Minutes Required Minutes Required
First Quiz (Q1) Second Quiz (Q2) 12 13 13 10 14 11 15 16 17 14 25 24 27 23 28 24 Plot the points in the grid below, then sketch a line that best fits the data. 32+ Q2 28 24 20 16- 12 8- 4 Q1 4 8. 12 16 20 24 28 32 Clear All Draw: Use the line above to predict the value of second quiz score if. a student had a score of 18 on the first test. (Please enter a whole number)

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4. Which of these trend lines best matches the scatter plot? 14 12 10 NO 0 • 2 A 2 4 6 8 10 12 14 14 12 10 2 0 B 2 4 6 8 10 12 14