Calculate the Covariance and Correlation from the table below State of Economy Probability A 0.1 B C D E 0.2 0.4 0.2 0.1 Returns(x) -8% 10% 8% 5% -4% Returns (Y) 14% -4% 6% 15% 20%
Q: At an organization, scoring in the middle 80% of employees regarding job performance is designated…
A: Area on each tail for two-tail test. z-score for lower tail (Area =0.10): Refer Standard normal…
Q: The following table shows the monthly adverting expenditure and sales revenue of a company. You are…
A: X : Sales revenue ($M) Y : Advertising expenditure ($000)
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: The data of advertisement expenditure (X) and sales (Y) of a company for 10 years is shown in the…
A: To determine the correlation coefficient, we use its formula shown below.
Q: The table below gives the estimated world population (in billions) for various years. 1980 1990 1997…
A: Hello! As you have posted 2 different questions, we are answering the first question. In case you…
Q: Annual high temperatures in a certain location have been tracked for several years. Let XX represent…
A: The sums are, x y x2 y2 xy 1 22.22 1 493.7284 22.22 2 19.5 4 380.25 39 3 18.08 9 326.8864…
Q: Which of the following represents the weakest correlation? 0.02 O-44 O.15 O.80
A: The objective of this question is to identify the weakest correlation among the given correlation…
Q: The Pearson Correlation Coefficient is used with _______________ data. a. discreet b.…
A: According to the given information in this question We need to identify that Pearson correlation…
Q: Y 5 10 3 6 6 7 4 3 2 4 a. Compute the Pearson correlation. b. Find the…
A:
Q: Annual high temperatures in a certain location have been tracked for several years. Let X represent…
A: Karl Pearson suggested a measure of correlation between the two variables. It is known as karl…
Q: (b) Would you say the correlation is low, moderate, or strong? positive or negative? O moderate and…
A:
Q: Linearity is an assumption for the Pearson Correlation. Group of answer choices True False
A: Here we have to answer the question of Linearity is an assumption for the Pearson Correlation.…
Q: Computer, the correlation coefficient, using the following data. r= (Round to two decimal places.) X…
A:
Q: X Y 5 10 3 6 6 7 4 3 2 4 a. Compute the Pearson correlation. b. Find the…
A:
Q: The numerical value for a correlation_____ can never be less than -1.00 can never be greater than…
A: The numerical value for a correlation can never be greater than 1.00 and can never be less than…
Q: Find the coefficient of correlatión ent and social adjustment from the following data. Students…
A: Given: Emotional Adjustment Social Adjustment 2.6 2 2.8 2 3 2.6 3 2.5 3 2.4 3.2 2.8…
Q: Annual high temperatures in a certain location have been tracked for several years. Let X represent…
A: Correlation: A statistical method that is applied between the pairs of variables to check how…
Q: Year End Stock FA Realized Return Stock Q Realized Return 2020 -8.50% 4.57% 2019 -5.63%…
A:
Q: Conduct the hypothesis test and provide the test statste and the ertical value. and state the…
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: Annual high temperatures in a certain location have been tracked for several years. Let X represent…
A: We have to calculate the correlation coefficient for given data on X and Y.
Q: Summary statistics for returns on two stocks X and Y are listed below. Mean 2.83% 5.98% Stock X…
A: MeanVarianceStock X2.83%0.006000Stock Y5.98%0.003000
Q: A researcher is interested in the relationships between variables in a demographic information…
A: Pearson correlation, r is a unitless measure that can be used to quantify the direction and strength…
Q: Jse the Women's Earnings scatterplot below to answer the questions. Women's Earnings as a Percentage…
A:
Q: Given the following two-dimensional distribution of quarterly sales (x) and money spent on…
A: To find the mean of X, we need to add the values of X that are given, and then, divide the sum by…
Q: Annual high temperatures in a certain location have been tracked for several years. Let X represent…
A: x y xy x2 y2 4 23.55 94.2 16 554.6025 5 20.78 103.9 25 431.8084 6 19.91 119.46 36…
Q: (a) Is it possible to get the following from a set of experimental data ? 12 = 0-t, 123 = 0-8, 3: =…
A:
Q: Annual high temperatures in a certain location have been tracked for several years. Let X represent…
A: X Y X \cdot YX⋅Y X^2X2 Y^2Y2 2 9.03 18.06 4 81.5409 3 7.74 23.22 9 59.9076 4 5.05 20.2…
Q: Summary statistics for returns on two stocks X and Y are listed below. Stock X Stock Y Mean 2.85%…
A:
Q: Let x denote the number of red lights the motorcycle encounters going from Beundia to Quiapo and y…
A: Correlation is given by; r(X,Y)=Cov(X,Y)σxσy We need to first find Cov(X,Y) and the standard…
Q: - 16 Calculate Coefficient of Correlation from the following data: 0.1 0.2 0.3 0.4 0.5 0.6 0.7 X y…
A:
Q: The table below gives the estimated world population (in billions) for various years. 1980 1990 1997…
A: Given data obtained as follows, x y x2 y2 x⋅y 1980 4400 3920400 19360000 8712000 1990 5100…
Q: Annual high temperatures in a certain location have been tracked for several years. Let XX represent…
A: The linear correlation coefficient is used to measure the linear relation between two variables. If…
Q: Annual high temperatures in a certain location have been tracked for several years. Let XX represent…
A:
Q: The weight (in pounds) and height (in inches) for a child were measured every few months over a…
A: Correlation coefficient quantifies the strength and direction of relationship between variable. The…
Q: Returns on stocks X and Y are listed below: Period Stock X Stock Y 1 2 3 4 5 9% 6% 1% 8% -1% -2% 9%…
A: The returns on stocks and are listed below: Stock X9%6%1%8%-1%3%10%Stock Y-2%9%5%12%-1%6%5%Sample…
Q: Measles and Mumps A researcher wishes to see if there is a relationship between the number of…
A: Given Measles cases (x) 49 130 61 54 220 Mumps cases (y) 817 454 2002…
Q: You are given the total number of weekly sales from two employees over a 7-week period. Calcu- late…
A: Step 1: Identify the formula to be used to find the Pearson correlation coefficientPearson…
Q: calculate the correlation coefficient (to three decimal places) between XX and YY. Use your…
A:
Q: A portfolio is created by investing equally into two stocks: Stock A and Stock B. The table below…
A: Given that We have to find the correlation between the returns of these two stocks
Q: Find the best predicted value for the level of Customer Satisfaction given that the Cost is 13. Use…
A: The regression equation for the above data is
Step by step
Solved in 3 steps with 3 images
- Annual high temperatures in a certain location have been tracked for several years. Let XX represent the year and YY the high temperature. Based on the data shown below, calculate the correlation coefficient (to three decimal places) between XX and YY. Use your calculator! x y 2 16.7 3 13.74 4 14.78 5 14.32 6 14.66 7 13.4 r=Using technology, what is the correlation coefficient? The weight (in pounds) and height (in inches) for a child were measured every few months over a two-year period. The results are given in the table. O -0.997 O -0.503 Weight (x) 8. 12 18 24 30 32 35 37 40 O 0.503 Height (y) 22 23 26 30 32 33 5 36 38 O 0.997The value of the correlation that represents the weakest linear correlation. -0.24 0.50 0.35 0.00
- Annual high temperatures in a certain location have been tracked for several years. Let X represent the year and Y the high temperature. Based on the data shown below, calculate the correlation coefficient (to three decimal places) between X and Y. y 1 18.66 2 24.02 24.08 4 27.14 30.9 6 35.16 7 37.12 8 37.68 9 40.94 10 45.6 11 45.56 12 48.72 13 51.48 r =performance in 2009. Analysis of this data reveals a correlation coefficient of r=−0.2234. What would be the predicted stock return for a company whose CEO made $15 million? What would be the predicted stock return for a company whose CEO made $25 million? What would be the predicted stock return for a company whose CEO made $15 million? % (Type an integer or decimal rounded to one decimal place as needed.)Annual high temperatures in a certain location have been tracked for several years. Let XX represent the year and YY the high temperature. Based on the data shown below, calculate the correlation coefficient (to three decimal places) between XX and YY. Use your calculator! x y 3 14.3 4 13.89 5 15.58 6 14.87 7 12.66 8 10.15 9 9.54 10 8.13 11 11.42 12 9.81 13 6.6 r=
- Based on the SPSS correlation matrix below, what do we know about the t-score value for each tested relationship?Annual high temperatures in a certain location have been tracked for several years. Let X represent the year and Ý the high temperature. Based on the data shown below, calculate the correlation coefficient (to three decimal places) between X and Y. Use your calculator! y 3 24.31 4 21.82 22.63 6 22.54 7 21.35 8. 20.06 6. 18.47 10 18.98 11 18.29 12 16.3Sketch a scatter plot and estimate the Pearson correlation . And then Compute the Pearson correlation. X VALUES: 0,2,1,1 | Y VALUES: 4,9,6,9
- • What is the linear correlation coefficient of the data shown in the scatterplot below? (A) r = -0.99 (B) r = 0.99 (C) r=-0.73 (D) r=0.73Annual high temperatures in a certain location have been tracked for several years. Let XX represent the year and YY the high temperature. Based on the data shown below, calculate the correlation coefficient (to three decimal places) between XX and YY. Use calculator/Excel! x y 3 22.92 4 23.3 5 19.68 6 17.96 7 18.34 8 18.22 9 16.2 10 14.48 11 11.56 12 11.04 13 11.52 14 10.2 r=r=y: 30 -10 50 10 1 25 -15-60 15 8 35 20-5 7. 10 9. -40 -5 X: 9. 3 4 6. 0.05. Test for significant positive (linear) correlation at a =