a) Find Correlation coefficient (4m) b) Draw a Scatter plot (1m)

Q: b. Is the correlation significant using a=.01? c. State the conclusion in APA format.

A: Given  α=0.01

Q: Use the following table to find the linear correlation coefficient between x and y

A: Given data, X Y X*Y X*X Y*Y 1 3 3 1 9 1 1 1 1 1 2 1 2 4 1 4 2 8 16 4 3 3 9 9 9 2 4 8…

Q: (a) Calculate Coefficient of Correlation (b) Determine the Probable Error and interpret the result

A: Given: sample size, n=8 x y 65 67 66 68 67 65 67 68 68 72 69 72 70 69 72 71

Q: 2. Sketch the scatter plot that shows: a. Positive correlation b. Negative correlation' c. Zero…

A: Scatter plot is the graphical representation of the relationship between two variables of a…

Q: Determine the value that the correlation, r, could be for the following scatter plot. 8. 2. 6. 8.

A:

Q: The population correlation coefficient is used to study the strength and direction of the linear…

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Q: b. Calculate the Product Moment Correlation Coefficient, r, and describe the relationship shown on…

A: b. x y xy x2 y2 15 104 1560 225 10816 17 113 1921 289 12769 20 188 3760 400 353444 25 275…

Q: in) Find the auto correlation function and its PSD. ) Find the Mean and Variance of Y (t)

A: Answer: For the given data

Q: 18) Based on the scatterplot, select the most likely value of the linear correlation coefficient r.…

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Q: Circ. (in.) Circ. (in.) Height (in.) (c) Compute the linear correlation coefficient between the…

A: Given data, s.no Height Head circumference 1 27.25 17.5 2 25.25 16.9 3 26.5 17.3 4 25.75…

Q: A researcher believes there is a correlation between height of father and height of son. They…

A: Solution: Given information:  The independent variable x is   Height of Father  The dependent…

Q: Ag (b) Calculate the sample correlation coefficient r. T= 4.032 (Round to three decimal places as…

A: In day-to-day life, we come across some situations where two variables are related to each other,…

Q: Use Spearman's formula to find the rank Correlation Coefficient.

A: Given that  Number of students n = 15 First we have to calculate the difference d between ranks of…

Q: Find the correlation coefficient using Rank correlation (s

A: here use  studying in hour  = X marks  = Y

Q: Find the (а) теаns (b) varignces (c) correlations

A:

Q: Find the coefficient of determination r2, given that the value of the linear correlation…

A: It is given that The correlation coefficient is r = 0.611

Q: Compute the correlation coefficient. 25416 y 3 61 2 4 Send data to Excel

A: The correlation coefficient formula is: where, The table that shows the necessary calculations is…

Q: Find the correlation coefficient between the variables X and Y presented in the table: X 1 3 4 6 8…

A: We want to find the correlation coefficient between the variables X and Y

Q: Q5: From the table below, 38 44 50 50 50 53 55 59 60 64 73 74 77 70 58 77 87 82 75 60 72 92 104 126…

A: Solution-:  We find For Correlation (By Deviation Method)

Q: Calculate the correlation coefficient and interpret the result.

A: Answer:

Q: Compute the correlation co-efficient between the variables X and Y represer following table: X 4 11…

A: Correlation It tells how the variables are linearly related with each other. It represents the…

Q: 1.2. Calculate the correlation of coefficient (r).

A: Here, Two variables are given, X : Income per annum (in R 1000)  Y : Life Insurance (in R 1000) The…

Q: Find the Covariance and the Correlation between X and Y

A: Given: n=5 The covariance and correlation are calculated as…

Q: (a) Compute the linear correlation coefficient for each data set.

A: (a) For the first data set: The correlation value is obtained using EXCEL. The software procedure is…

Q: (d) Guess the correlation coefficients for the following scatter plots. r= ?

A: Correlation: By correlation we mean the association or interdependence between two variables. If two…

Q: 1 For each scatter plot, state whether you would use Pearson's product moment correlation…

A: It is known that Pearson's product moment correlation coefficient to measure the strength of the…

Q: 1. Calculate the linear correlation coefficient for the following data. X = 4,8,12, 16 and Y = 5,…

A: Given Data X = 4, 8, 12, 16 and Y = 5, 10, 15, 20

Q: the strength of correlation is indicated by: both (a) and (b) (B) its sign (+ or -) None of the…

A: the strength of correlation is indicated by

Q: The correlation coefficients for the six scatter plots shown below are -0.85, 0.40, 0, 0.50, 0.90…

A: It is given that there are six correlation -0.85, 0.40, 0, 0.50, 0.90 and 0.99 that corresponds the…

Q: In the table below are the scores of the students in General Mathematics and Physics. Calculate the…

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Q: The symbol that is used for the linear correlation coefficient is _______.

A:

Q: Find the value of the linear correlation coefficient r for the simple random sample of paired data…

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Q: Calculate the correlation coefficients rxy, rxz, and ryz.

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Q: find the coefficient of determination, given that the value of the linear correlation coefficient,r,…

A:

Q: Find the linear correlation coefficient for the data

A: Let X denotes the placement exam rating And Y denote the GWA of students.

Q: A zero correlation bewteen X and Y is least likely to occur if?

A: The strength and direction of linear relationship between two variables is measured by correlation,…

Q: Compute the correlation coefficient, r.

A: The correlation coefficient formula is, r=n∑ixy-∑ix∑iyn∑ix2-∑ix2n∑iy2-∑iy2 The sums are, Chest(x)…

Q: a. Calculate the correlation coefficient r for these data. b. At the 0.05 level of significance,…

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Q: (c) Compute the linear correlation coefficient between the height and head circumference of a child.…

A: Provided data is ; Height(x) Head circumference(y) (xi-x¯) (yi-y¯) (xi-x¯)2 (yi -y¯)2…

Q: 3) Use the given data to find the correlation coefficient r (formula or calculator), then do a…

A: Given data, s.no x y 1 2 5 2 3 9 3 5 15 4 6 19

Q: (a) In Data 7A, the "subjects" of the research are not indi- viduals, but rather what? (b) Make a…

A: a) Data about per capita consumption of cigarettes and male death rate per million is given. Subject…

Q: The following table shows the annual family income of the students enrolled in the JRMSU-TC and…

A: The provided information is  x y xy x2 y2 100000 85 8500000 10000000000 7225 50000 79 3950000…

Q: Calculate the correlation coefficients rry, rrz, and ryz-

A: Here, x y x-x y-y (x-x)(y-y) (x-x)2 (y-y)2 1 0 -5 -2.45 12.25 25 6.0025 2 0 -4 -2.45 9.8 16…

Q: a. Calculate the Pearson correlation coefficient and regression line based on the data below. b.…

A: Given: Kilometer ran(X) Time (Y) 10 90 10 60 16 150 16 90 21 160 21 180

Q: Find the correlation coefficient between the variables X and Y presented in the table: X 1 3 4 6 8…

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Q: 3.4 Calculate the correlation coefficient and interpret the value 3.5 Calculate the coefficient of…

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Q: (b) Compute the correlation coefficient between the price of eggs and the price of milk. Round the…

A: Given data, Dozen eggs (x) gallon of milk(y) 1.77 3.58 1.94 3.58 1.67 3.47 1.65 3.47…