Given the following bivariate data: X =[20, 12, 11, 14, 16, 11, 12, 18, 14] Y=...
Given the following bivariate data:
X =[20, 12, 11, 14, 16, 11, 12, 18, 14]
Y= [49, 41, 55, 66, 53, 52, 65, 53, 51]
Calculate the proportion of observed variation. (To 4 decimal places)
Homework Answers
proportion of observed variation means r^2=0.0213. that is 2.1% variability of y explainde by x.
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Given the following bivariate data:
X =[20, 12, 11, 14, 16, 11, 12, 18, 14]
Y=...
blockpy python review 16 processing json files second pic is the report.json file data BlockPy: Review 16) Process JSON The given file contains JSON data. Use the data associated with the "Employ...
blockpy python review 16 processing json files
second pic is the report.json file data
BlockPy: Review 16) Process JSON The given file contains JSON data. Use the data associated with the "Employees" key (a list inside of a dictionary inside of a dictionary inside of a dictionary) to plot the distribution of employees. Note: You cannot embed the contents of the file directly in your program. Use the appropriate file handling style to access the data in the file. Note:...
Consider the following sample data: x 14 16 17 18 20 y 20 14 17 12...
Consider the following sample data: x 14 16 17 18 20 y 20 14 17 12 13 a. Calculate the covariance between the variables. (Negative value should be indicated by a minus sign. Round your intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) b. Calculate the correlation coefficient. (Round your intermediate calculations to 4 decimal places and final answer to 2 decimal places.)
PLEASEEE HELP!! THANKS!!! Run a regression analysis on the following bivariate set of data with y...
PLEASEEE HELP!! THANKS!!!
Run a regression analysis on the following bivariate set of data with y as the response variable. х у 54.7 26.5 55.1 25.9 49.6 21.9 55 24.1 55.4 23 46.9 22 50.4 21.4 54.7 22.9 49.8 24 49 20.9 57.8 23.9 56.1 25.9 Find the correlation coefficient and report it accurate to three decimal places. What proportion of the variation in y can be explained by the variation in the values of x? Report answer as a...
RANGES FREQUENCY RELATIVE FREQUENCY CUMULATIVE REL. FREQ. 1 - 10 11 - 20 21 - 30 31 - 40...
RANGES
FREQUENCY
RELATIVE FREQUENCY
CUMULATIVE REL. FREQ.
1 - 10
11 - 20
21 - 30
31 - 40
41 - 50
51 - 60
61 - 70
71 - 80
81 - 90
91 - 100
'= 100 DATA
VALUES??
SO, WHAT DOES A FREQUENCY TABLE TELL US?
If
you wrote each of the above data values on a ping pong ball,, put
them in a jar and blindly pulled one out:
What is the probability that this ball...
Bivariate data obtained for the paired variables x and y are shown below, in the table...
Bivariate data obtained for the paired variables x and y are shown below, in the table labelled "Sample data." These data are plotted in tho scatter plot in Figure 1, which also displays the least-squares regression line for the data. The equation for this line is y25.35+1.10x In the "Calculations" table are calculations involving the observed y values, the mean y of these values, and the values y predicted from the regression equation Sample data Calculations 215.4 210.7 237.7 251.7...
Consider the data: X- 1 Y- 6 3 14 5 7 2 20 9 11 10...
Consider the data: X- 1 Y- 6 3 14 5 7 2 20 9 11 10 18 13 15 26 22 (a) Calculate the correlation between X and Y. 0.7399 (b) What percent of the variation in Y can be attributed to X? (Round to a whole percent) 55 % (c) Obtain the equation of the regression line for these data y = X +
West Battery Corp. has recently been receiving complaints from retailers that its 9-volt batteries are not...
West Battery Corp. has recently been receiving complaints from retailers that its 9-volt batteries are not lasting as long as other name brands. James West, head of the TQM program at West's Austin plant, believes there is no problem because his batteries have had an average life of 5050 hours, about 10% longer than competitors' models. To raise the lifetime above this level would require a new level of technology not available to West. Nevertheless, he is concerned enough...
The following data consist of the revenue growth rates (in percent) for a group of 20...
The following data consist of the revenue growth rates (in percent) for a group of 20 firms 56 42 28 83 49 53 51 43 32 65 63 91 70 42 36 59 30 55 Click here for the Excel Data File Construct a stem-and-leaf display for the above data Stem Unit Leaf Unit Frequenc Stem Leaf 1Growth Rates (in percent) 3 GrowRate 36 30 59 4 6 8 42 65 63 91 70 32 10 12 13 14 15...
Here is a bivariate data set. x y 97 45.2 33.2 95.3 58.3 59.5 58.3 84.2...
Here is a bivariate data set. x y 97 45.2 33.2 95.3 58.3 59.5 58.3 84.2 61.9 41.8 50.1 73.2 47.5 97.5 24.8 70.7 9.5 115.9 52.1 68.1 52.4 84.6 18 93.6 65.8 76.5 60.4 40.4 Find the correlation coefficient and report it accurate to three decimal places. r = What proportion of the variation in y can be explained by the variation in the values of x? Report answer as a percentage accurate to one decimal place. r² =...
Run a regression analysis on the following bivariate set of data with y as the response...
Run a regression analysis on the following bivariate set of data with y as the response variable. data: x, y 27.9, 61.5 35.9, 40.6 53.6, -25.3 15.5, 68.5 32.7 14.4 12.4, 89.4 37.7, 17.3 30.3, 48.6 46.7, -6.3 14.4, 55.5 16.9, 55.3 24.8, 62.1 Find the correlation coefficient and report it accurate to three decimal places. r = What proportion of the variation in y can be explained by the variation in the values of x? Report answer as a...
blockpy python review 16 processing json files
second pic is the report.json file data
BlockPy: Review 16) Process JSON The given file contains JSON data. Use the data associated with the "Employees" key (a list inside of a dictionary inside of a dictionary inside of a dictionary) to plot the distribution of employees. Note: You cannot embed the contents of the file directly in your program. Use the appropriate file handling style to access the data in the file. Note:...
PLEASEEE HELP!! THANKS!!!
Run a regression analysis on the following bivariate set of data with y as the response variable. х у 54.7 26.5 55.1 25.9 49.6 21.9 55 24.1 55.4 23 46.9 22 50.4 21.4 54.7 22.9 49.8 24 49 20.9 57.8 23.9 56.1 25.9 Find the correlation coefficient and report it accurate to three decimal places. What proportion of the variation in y can be explained by the variation in the values of x? Report answer as a...
RANGES
FREQUENCY
RELATIVE FREQUENCY
CUMULATIVE REL. FREQ.
1 - 10
11 - 20
21 - 30
31 - 40
41 - 50
51 - 60
61 - 70
71 - 80
81 - 90
91 - 100
'= 100 DATA
VALUES??
SO, WHAT DOES A FREQUENCY TABLE TELL US?
If
you wrote each of the above data values on a ping pong ball,, put
them in a jar and blindly pulled one out:
What is the probability that this ball...
Bivariate data obtained for the paired variables x and y are shown below, in the table labelled "Sample data." These data are plotted in tho scatter plot in Figure 1, which also displays the least-squares regression line for the data. The equation for this line is y25.35+1.10x In the "Calculations" table are calculations involving the observed y values, the mean y of these values, and the values y predicted from the regression equation Sample data Calculations 215.4 210.7 237.7 251.7...
Consider the data: X- 1 Y- 6 3 14 5 7 2 20 9 11 10 18 13 15 26 22 (a) Calculate the correlation between X and Y. 0.7399 (b) What percent of the variation in Y can be attributed to X? (Round to a whole percent) 55 % (c) Obtain the equation of the regression line for these data y = X +
The following data consist of the revenue growth rates (in percent) for a group of 20 firms 56 42 28 83 49 53 51 43 32 65 63 91 70 42 36 59 30 55 Click here for the Excel Data File Construct a stem-and-leaf display for the above data Stem Unit Leaf Unit Frequenc Stem Leaf 1Growth Rates (in percent) 3 GrowRate 36 30 59 4 6 8 42 65 63 91 70 32 10 12 13 14 15...
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