Here is a bivariate data set.y32.88344.188.928.570.718.442.420.151.629.95126.86442.686.82548.122.740.328.372.4-1.517.923.221.3Find the correlation coefficient and report it accurate to three decimal places.r =Question Help: Message instructorSubmit Question

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Answered: Here is a bivariate data set. y 32.8 83…

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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Due Sat 12/05 Here is a bivariate data set. y 20 61 26 61 19 57 25 48 31 48 24 42 36 55 3 35 Find the correlation coefficient and report it accurate to four decimal places. r =
At the .05 significance level, does the data below show significant correlation? X y 5 22.1 6 20.35 7 17.2 8 16.85 9 8.2 10 17.45 17 11 Yes, significant correlation O No
Vocabulary size Vocabulary size The accompanying table shows the ages (in years) of 11 children and the numbers of words in their vocabulary. Complete parts (a) through (d) below. Click here to view the data table. Click here to view the table of critical values for the Pearson correlation coefficient. (a) Display the data in a scatter plot. Choose the correct graph below. O A. OD. %3 Data Table 3000- 8- 2400- 6- 1800- 4- Age, x Vocabulary size, y 1200- 600- 2- 1 0- O 2 4 6 8 -> 2 260 1500 3000 Age (years) Age (years) 3 610 1100 (b) Calculate the sample correlation coeffid 2200 2600 r= 0.973 3 730 (Round to three decimal places as needed 2400 (c) Describe the type of correlation, if any, 2 270 4 1300 There is V linear correla 6 2400 Print Done Help me solve this View an ear all Check ans
All the values are given
Suppose a doctor measures the height, x, and head circumference, y, of 11 children and obtains the data below. The correlation coefficient is 0.883 and the least squares regression line is y = 0.134x + 13.693. Complete parts (a) and (b) below. Height, x Head Circumference, y 17.4 27.75 25.25 26 25.25 27.25 26.75 26 27.25 27 27.25 26.75 17.1 17.3 17.0 17.4 17.2 17.2 17.3 17.3 17.4 17.3 ..... (a) Compute the coefficient of determination, R?. R? % (Round to one decimal place as needed.) (b) Interpret the coefficient of determination. Approximately % of the variation in is explained by the least-squares gression model. (Round to one decimal place as needed.)
An r value of .8 indicates a strong positive correlation. True False
Suppose we compute a correlation coefficient between two variable of r= 0. Which of the following must be true. O a. The correlation conditions have not been met O b. There is an outlier present in the scatterplot O c. There is no linear relationship between the two variables O d. There is no relationship at all between the two variables A Click Submit to complete this assessment. A Stat100_Practice..pdf Writing Prompt 3.docx Online Syllabus J....pdf 3 Bios357Schedul...pd ips-D056AE4A- Ips-53E329A5-0A IMG_S E23F-45...p4.movE6-4E6...mp4.mov OCT 」國TO 22 6. 20 F3 F1 O00 F2 F4 F5
13
Note that this uses minitab. Make a scatterplot that will enable you to predict BBAC from number of beers consumed. What is the correlation coefficient?
tab Determine if there is a significant correlation between the sets of data at a 10% significance level. 31 29 57 35 60 62 49 62 50 35 37 32 57 20 X y 55 38 Negative Critical Value, tcrit Submit Question esc Positive Critical Value, tcrit Test Statistic, ttest C 2 F Test Conclusion: Reject Ho. There is enough evidence to suggest a significant (positive or negative) linear correlation between the data sets. W = Fail to Reject Ho. There is not enough evidence to suggest a significant (positive or negative) linear correlation between the data sets. 3 H [three decimal accuracy] [three decimal accuracy] [three decimal accuracy] a E A 4 do *5 R T < 6 Y
Q 4
The accompanying table lists the ages of acting award winners matched by the years in which the awards were won. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value of r. Determine whether there is sufficient evidence to support a claim of linear correlation between the two variables. Should we expect that there would be a correlation? Use a significance level of α=0.05. Best Actress - Best Actor 27 - 41 30 - 35 29 - 36 61 - 45 31 - 52 34 - 46 45 - 62 30 - 52 60 - 38 23 - 52 44 - 44 52 - 32 what is the linear coefficient?

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Here is a bivariate data set. y 32.8 83 44.1 88.9 28.5 70.7 18.4 42.4 20.1 51.6 29.9 51 26.8 64 42.6 86.8 25 48.1 22.7 40.3 28.3 72.4 -1.5 17.9 23.2 21.3 Find the correlation coefficient and report it accurate to three decimal places. r = Ouecti