QUESTION 27Consider the following data:1181210Y18101613What is the coefficient of correlation for the sample?O 0.9244O 0.4738O -0.7395-0.5631

X 11 8 12 7 10 Y 18 10 16 9 13 Correlation coefficient=r r=(SSxy)/√(SSxx×SSyy)

Answered: QUESTION 27 Consider the following…

QUESTION 27 Consider the following data: 11 8 12 7 10 18 10 16 13 Y What is the coefficient of correlation for the sample? O 0.9244 0.4738 O -0.7395 O -0.5631

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Related questions

Q: Consider the following sample data: x 10 14 15 16 y 15 14 19 16 18 22 222 Click here for the Excel…

A: The covariance between the variables X and Y is 6.85.Explanation:To calculate the covariance between…

Q: Which of the following is the method for measuring numerical correlation coefficient? a. All b.…

A: Spearman Rank method This method is used for the ordinal and ratio type of data. Scatterplot This…

Q: Calculate the Pearson correlation coefficient for the following data. 40 41 33 37 34 Y 23 21 25 22…

Q: The following information is obtained from a sample data set: n = 10, T = 10,Ey= 220, ry = 3680, r2…

Q: Refer to Exhibit 14-2. The sample correlation coefficient equals _____. a. .9941 b. –.99705…

A: Given that X Y X \cdot YX⋅Y X^2X2 Y^2Y2 15 5 75 225 25 12 7 84 144 49 10 9 90 100…

Q: Match the following sample correlation coefficients with the explanation of what that correlation…

A: r=0 r=-0.97 r=-1 r=0.1 If r=1 then we can say that a perfect positive Correlation between x and y If…

Q: Example 1 Calculate correlation coefficient between X and Y from the following sample data 34 5 x1 2…

Q: Compute the correlation coefficient for the following data set. x 1 2 3 4 5 6 7 y 2 1 4 3 9 5 6

A: Correlation: A statistical method that is applied between the pairs of variables to check how the…

Q: Consider the following data: x 4.493 4.130 3.132 2.702 4.660 5.572 y 1.010 2.995 4.984 6.982 9.007…

A: The objective is to determine the correlation coefficient for the given data:

Q: a survey examining health-related behaviors among university students, 200 participants were asked…

A: Calculate Sample Variance (S2) from the following grouped data X Frequency 0 145 2 25 5 20…

Q: FILE The following sample of observations was randomly selected. 4 5 6 10 y 4 6 7 Determine the…

A: Given data, X Y X*Y X*X Y*Y 4 4 16 16 16 5 6 30 25 36 3 5 15 9 25 6 7 42 36 49 10 7 70…

Q: There are 39 observations representing the 39 Peruvians in the dataset and 10 variables. Principal…

A: Solution: From the given information, there are 10 components. The scree plot is given.

Q: 2. Researchers looking at age and lifetime assault victimization interviewed nine adults and found…

A: a. The independent variable is X1X1, and the dependent variable is X2X2. In order to compute the…

Q: Case Number Height (in cm) Weight (in kg) 1 147 50 2 152 51 3 165 60 4 154 55 5 164 55 168 62 7 158…

A: We have given that data And I want to find correlation coefficients (r) r= SSXY/√SSXX . SSYY

Q: Is there an association between hair color and body type? The table below shows the results of a…

A: H0: There is no association between hair color and body type. H1: The is an association between…

Q: a. What is the appropriate correlation coefficient? b. Calculate the appropriate correlation…

A: Since you have posted multiple sub-parts, we will solve the first three sub-parts for you. To get…

Q: 1) Compute and interpret the sample correlation coefficient for the five observations taken for two…

Q: . For which data set is the sample correlation coefficient r closest to 0? B. Which data set has an…

Q: Answer the following. Carry your intermediate computations to at least four decimal places, and…

A: Step-by-step procedure to find the regression line using Excel: In Excel sheet, enter x and y in…

Q: Which of the following denotes the strongest correlation? a. r = 0.54 b. r = -0.63 c. r = 0.43 d. r…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: Is there a relationship between a college student’s GPA and the number of hours that student works…

A: The independent variable is number of hours worked per week. The dependent variable is GPA. We have…

Q: Given the following sample observations, draw a scatter diagram on a separate piece of paper. X: -8…

A: Given : X Y -8 54 -14 245 12 153 4 3 16 344

Q: The following sample observations were randomly selected. x 4 5 3 6 10 y 4 6 5 7 7…

A: Calculate the mean for x and y.

Q: Consider the sample correlation coefficients in the table below How much c of to determine the…

A: The correlation coefficient for time and boxes is 0.7532.

Q: Five observations taken for two variables follow. 3 6 11 6 13 50 50 40 60 30 Compute the…

A: We have given the 5 observations for 2 variables. We have to compute the sample correlation…

Q: Consider the following sample data for two variables. x 9 2 8 6 3 y 4 2 9 3 7 a. Calculate…

A: The following data has been provided: x 9 2 8 6 3 y 4 2 9 3 7 The…

Q: Let Hd be the population mean difference in price. State the hypotheses to test whether the mean…

A: Given, Site A: 115, 79, 42, 137, 99, 29, 84, 99, 116, 69 Site B: 110, 79, 39, 129, 99, 29,…

Q: a. points. b. Just looking at the scatter plot, estimate the value of the Pearson correlation. c.…

A: Excel can be used to construct the scatter plot.

Q: body of 10 patients. The data are below: Weight: 53.5 58.4 59.2 53.2 64, 57.5 67 66 77 66 BMI:…

A: The correlation is used to measure the association between the two numerical variable. It is…

Q: Compute the Pearson correlation for the following data. Describe the relationship in words. Y 12 29…

A: From given data, X Y X*Y X*X Y*Y 12 29 348 144 841 3 41 123 9 1681 16 9 144 256 81 24 1…

Q: A study was done to look at the relationship between number of lovers college students have had in…

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any…

Q: The following sample of observations was randomly selected. x 5 3 6 3 4 4 6 8 y 13 15 7…

A: Given Enter given data in to excel sheet

Q: Suppose we wanted to see if there was a correlation between suspension and ethnicity. We have the…

A: Given data is, Suspended Note Suspended Black 17 17 White 65 878

Q: Sarah is the office manager for a group of financial advisors who provide financial services for…

A: Let x be the number of presentations and y be the number of new clients.

Q: then the overall mean and variance are

A: here from given information n1 = 4 n2 = 6 n3 = 5 x1¯ = 2 , x2¯ = 2 , x3¯ = 2 σ21 = 3 , σ22 =…

Q: Sample question: Find the value of the correlation coefficient from the following table: SUBJECT AGE…

A: Pearson Correlation coefficient formula : r = ∑((X - My)(Y - Mx)) / √((SSx)(SSy)) where, X: X…

Q: Match the following sample correlation coefficients with the explanation of what that correlation…

Q: Correlations OEE OAC OJS Spearman's rho OEE Correlation Coefficient 1.000 .688" .830 Sig. (2-tailed)…

A: There are two ways correlation can be calculated, they are Karl Pearson Correlation and Spearman…

Question

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Hypothesis Tests and Confidence Intervals for Equality of Variances$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, probability and related others by exploring similar questions and additional content below.

Similar questions

Please provide the solution...
you are given the following information about x and y. xi independebt varible yi dependent varible 4 12 6 3 2 7 4 6 The sample correlation coefficient equals _____.
Find the sample correlation coefficient for the following data.
Which of the following is necessary to estimate the population parameter of a Pearson's correlation coeffcient properly? A. A curvilinear relationship B. Nominal Data C. Random sampling D. Ranked scores
A study was done to look at the relationship between number of partners college students have had in their lifetimes and their GPAs. The results of the survey are shown below. Partners 7 8 6 1 6 6 4 GPA 1.4 1.5 1.4 3 2.3 1.5 2.9 Find the correlation coefficient: r=r= Round to 2 decimal places. The null and alternative hypotheses for correlation are:H0:H0: ? r ρ μ Incorrect == 0 Ha:Ha: ? r ρ μ Incorrect ≠≠ 0 Use a level of significance of α=0.05α=0.05 to state the conclusion of the hypothesis test in the context of the study. You may want to reference the 95% Critical Values of the Sample Correlation Coefficient. There is statistically insignificant evidence to conclude that there is a correlation between the number of partners students have had in their lifetimes and their GPA. Thus, the use of the regression line is not appropriate. There is statistically significant evidence to conclude that a student who has had more partners will have a lower GPA than a…
Match the following sample correlation coefficients with the explanation of what that correlation coefficient means. Type the correct letter in each box. 1. r= 1 2. r = -1 3. r=-.15 4. r = .1 A. a weak positive relationship between x and y B. a weak negative relationship between x and y C. a perfect negative relationship between x and y D. a perfect positive relationship between x and y
A study was done to look at the relationship between number of lovers college students have had in their lifetimes and their GPAS. The results of the survey are shown below. Lovers GPA 6 3 4 4 7 6 2.2 2.2 2.3 2 2 3.4 3.8 1.9 2.3 a. Find the correlation coefficient: r= Round to 2 decimal places. b. The null and alternative hypotheses for correlation are: Ho: Hj: ?v + 0 = 0 The p-value is: (Round to four decimal places) c. Use a level of significance of a = 0.05 to state the conclusion of the hypothesis test in the context of the study. O There is statistically insignificant evidence to conclude that a student who has had more lovers will have a lower GPA than a student who has had fewer lovers. There is statistically significant evidence to conclude that a student who has had more lovers will have a lower GPA than a student who has had fewer lovers. O There is statistically significant evidence to conclude that there is a correlation between the number of lovers students have had in…
QUESTION 8 Find the mode(s) for the given sample data. 20, 38, 46, 38, 49, 38, 49 49 38 39.7 46
A study of bone density on 5 random women at a hospital produced the following results. Age 37 45 49 57 65 Bone Density 350 340 335 325 320 step 1: Calculate the correlation coefficient, r. Round your answer to six decimal places. step 2: Calculate the correlation coefficient, r. Round to 3 decimal places. step 3: positive, negative, or no correlation
For the following data 5,6,8,9 o = 2.1 Then C.V.= Select one: O a. 21.1% O b. 33.3% O c. 38% O d. 30%
Suppose we have the following paired observations of variables X and Y: X Y 8 0 4 10 12 20 Draw the scatter plot comparing X and Y. Calculate the values of the sample covariance and sample correlation between X and Y. Using this information, how would you characterize the relationship between X and Y ?
Five observations taken for two variables follow. xi 6 11 15 21 27 yi 6 9 5 18 12 a. compute the sample covarinace b. Compute the sample correlation coefficient. (Round your answer to three decimal places.)