Calculate correlation coefficient from the following information: N= 10, ΣX= 140, ΣΥ= 150, Σ(Χ- 10, -180, Σ(Υ-15)? =215 %3D E(X – 10) (Y – 15) = 60.

Q: For the following scores,    X Y 1 7 4 2 1 3 1 6 2 0 0 6…

A: The given data shows the scores of X and Y.

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Q: 3. Comment on the following statements: (i) The correlation coefficient r, between X and Y is 0-90…

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Q: Based on the data shown below, calculate the correlation coefficient (to three decimal places). This…

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Q: You are told that Land’s End, a catalog retailer, earned an excess return (Jensen’s alpha), in…

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A: n=N=10, ∑x=250, ∑Y=300, ∑XY=7900, ∑X2=6500, ∑Y2=10000

Q: ... Calculate the correlation. (Round to three decimal places as needed.) r=

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Q: Year y Year y 1924 8 1.350 1931 16 4.620 1925 8 1.960 1932 18 5.497 1926 9 2.270 1933 19 6.260 1927…

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Q: From the data given below: (x) 2 (y) (a) Calculate coefficient of Correlation r,, (b) Find…

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Q: Obtain the regression equation of Y on X for the following distribution. f (x, y) (1 + x)* exp (-y/1…

A: Answer: For the given data,

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Q: 5. From 12 observations the following results were obtained Σ x =125 , Σ y =437, Σxy =4997,Σ x'…

A: Correlation Coefficient: A correlation coefficient indicates the non-causal link between two…

Q: & Obtain the regression equations from the data given below: 1 2 9 8 3 4. 6. 8 10 12 11 13 14 16 15…

A: Solution is given:

Q: Find correlation in detail with every step. with respect to x,y, and z values as given in the table

A: The correlation is used to understand the strength of association between the two or more variables.…

Q: Show that their correlation coefficient is p =1_if a > 0 for any b =- 1 if a<0 for any

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Q: The regression results below show the relationship between GDP (Y) and private consumption (X) for…

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A: It is given that the correlation coefficient is -0.589.

Q: The following data on x maternal age in years of the young birth mothers and y weight of baby born…

A: We have given that,  SSXX = 20, SSYY = 1539182.9 and SSXY = 4903 Then,  We will find the correlation…

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Q: The following estimated regression model was developed relating yearly income (y in $1000s) of 30…

A: Solution

Q: From 9 observations the following results were obtained ΣXΣX =824, ΣYΣY  =750, ΣXYΣXY  = 69540,…

A: Consider the given information. ΣX =824,  ΣY  =750,  ΣXY  = 69540,  ΣX2 =67024,  ΣY2=59130. (i) We…

Q: From 12 observations the following results were obtained Σx =125, Σ y =437, Σxy =4997,Σ x2 =1397, Σ…

A: Givensample size(n)=12∑x=125∑y=437∑xy=4997∑x2=1397∑y2=18257

Q: (c) Determine the linear correlation coefficient between commute time and well-being score. r=…

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Q: Consider the following regression equation: Y = 30 + 8X. If SSE = 720 and SS Total = 1,200, then the…

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Q: Q1) Test a correlation relationship by using Pearson Superman coefficients. 2 2 2 1 1 1 y 3 X 4 2 2…

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Q: From laboratory tests, the relationship between stress (0) and strain (ɛ) is obtained as shown in…

A: Given data Stress (σ) Strain (ε) 1598 0.0009 5298 0.002 7198 0.0031 7898 0.0047 9098…

Q: The population of a certain country from 1970 through 2010 is shown in the table x, Number of Years…

A: From the given information, The original data can be expressed as: X Y 1 208.7 11 240.5 21…

Q: In a sample ofn = 20, the correlation between two variables is r = 0.7. Determine if this…

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Q: 9. If the coefficient of correlation between two variables x and y is 0.5 and the acute angle…

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Q: . Conduct t-tests on each of the beta parameters. What is your conclusion in each case? 1. What…

A: c. t tests on each of the beta parameters: From the output,   t stat P value Intercept 2.8198…

Q: The range of correlation coefficient is O to 1 -1 to +1 1 to 0 None of the above

A: According to the given information, we have The correlation coefficient is given.

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Q: The data below gives the average interest rate (as a percent), x, and the number of loans issued for…

A: From the provided information, x y 5.1 17 6.9 2 6.6 4 5.7 14 4.6…

Q: Show that the serial correlation coefficient p is equal to -1, if n = 2, provided the denominator is…

A: Solution:

Q: The correlation between X and Y is r = 0.35. %3D Based on this r value, is this a good equation to…

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Q: There is a relation between the following variables as y = 1 / (a ​​* x ^ b) (x ^ b means x over b)…

A: The correlation coefficient(r) of x, y is given by,  Calculate the summations as follows:  x y…

Q: What is indicated by a Pearson correlation of r +1.00 between X and Y? O Every increase in X causes…

A: Solution: From the given information, r=+1.

Q: The ages, t years of 7 hospital patients and their blood pressure, p mmHg are shown in Table 3.…

A: Hi! Thank you for posting the question. Since your question has more than three sub-parts, we have…

Q: 2.2. Calculate the correlation of coefficient (r).

A: We have given the formula  r=(SXY/(√(SXX×SYY)))

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Q: A correlation of r=0.85r=0.85 is found between weekly sales of firewood and cough drops over a…

A: Solution: Correlation Coefficient :  The correlation coeffcient can be defined as  If two variables…

Q: The correlation coefficient O a. can be less than -1 b. is the same as the covariance C. cannot be…

A: We have to find the coreation coefficient.

Q: A professor obtains SAT scores and freshman grade point averages (GPAs) for a group of n = 15…

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Q: If the variables have a negative association, then their correlation must be: A. less than-1. OB.…

A: Given: Variable have negative association. So it's value is always less than zero.

Q: Frank Reynolds is a bar owner who recently turned 50. He decides to buy $90,000 of continuous whole…

A: Given: S = 90000 μ50+t=0.06δ=0.05

Q: Based on the data shown below, calculate the correlation coefficient (to three decimal places). This…

A: Given data, X Y X*Y X*X Y*Y 2 8.38 16.76 4 70.2244 3 6.35 19.05 9 40.3225 4 7.92 31.68 16…

Q: If e is the angle between the two regression lines. Show that sin 0 < 1 - r2 (r is the correlation…

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Q: • 45. Calculate the correlation coefficient from the following results : N- 10, Σ X= 350) Σ Υ- 310…

A: We want to find the correlation and regression line y on x .