Scenario: Two managers ranked 10 franchises by profitability potential. The sum of squared differences in their rankings is 44. Check to see if their rankings are correlated by calculating the Spearman Coefficient of Rank Correlation.  (Enter numerical answers to three decimal places with zero before the decimal.  For yes or no answers, enter Y for yes or N for no.) a. Calculated rs _____ b. At alpha =1% and a one-tail test, what is the critical value of rs ______     c. Does this result indicate that the rankings by the managers are positively correlated? _____ (Y or N)

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Q: onth (rounded to the nearest dollar) and degree of customer satisfaction a scale of 1 - 10 with a 1…

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Q: A set of n = 54 pairs of scores (X and Y values) in a research study has a Pearson correlation of r…

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Q: A statistician reports that the correlation between two quantitative variables X and Y is r= 0.88.…

A: Solution :  Here we have given correlation between two quantitative variables X and Y is 0.88 r ^2 =…

Q: n between height and weight for a sample of 25 adults is r = +.40. What percent of the variability…

A: The coefficient of determination R2 determines the percentage of the changes in the dependent…

Q: ii. (click to select) Dependent Variable: (click to select) Pearson Correlation Coefficient (n):

A: Independent variable X Number of bottle of wine purchased in last 3 months Dependent variable Y…

Q: firm's sales and three economic indexes. The results were as follows:   Index Coefficient of…

A: Correlation measures degree of linear relationship between two variables.

Q: The given data represent the total compensation for 10 randomiy selected CEOS and their company's…

A: Given data, X Y X*Y X*X 26.83 6.29 168.7607 719.8489 12.51 30.85 385.9335 156.5001 19.73…

Q: I would like to assess the degree to which dropping out of school is correlated with satisfaction…

A: The satisfaction with school is dependent on a number of things like the quality of education, the…

Q: 2. Consider the following examples; would you expect the correlation coefficient to be close to 1,…

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A: The independent variable is GPA. The dependent variable is Monthly Salary. This is simple linear…

Q: Suppose you survey 50 people and measure their height (inches) and wingspan (inches).  You use this…

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A: Correlation: Correlation is a statistic that measures the degree to which two variables move in…

Q: If the coefficient of determination is 0.90, the percentage of variation in the dependent variable…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: The data in the table to the right represent the calories and sugar (in grams) in one serving of…

A: X Y 79 5 103 1 102 3 109 4 133 3 194 12 205 9

Q: A sample of 79 companies was taken and the annual profits (y) were plotted against annual sales (x).…

A: The plot of annual profits (y) was plotted against annual sales (x) for a sample of 79 companies,The…

Q: Modern medical practice tells us not to encourage babies to become too fat. Is there a positive…

A: Since you have posted question with multiple subparts,we will solve first three sub parts for you.To…

Q: What is the correlation coefficient between the outcome and predictor variables? Is it significant?…

A: The outcome variables are the variable that is obtained as the solution. These are also called…

Q: The maximum weights (in kilograms) for which one repetition of a half-squat can be performed and the…

A: Solution-: Given: r=0.707, α=0.05, n=12 We determine (a) Null and alternative hypothesis (b)…

Q: What is the relationship between the linear correlation coefficient r and the slope b, of a…

A: We have given that the statement about to the relationship between the linear correlation…

Q: 2.6. Find Pearson corre A: 10,12,14,16,18,20,22,24,26,28 B: 25.30.28.34,30,39,45,40,49,50

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Q: Part d: Compute the least squares regression equation. Show your work. Parte: If appropriate, use a…

A: The given data is    Knowledge Score Calcium Intake xy x2 y2   38 9.4 357.2 1444 88.36   25…

Q: Josh examines the relationship between eating vegetables and getting the flu. He discovers that…

A: The correlation shows the relationship b/w 2 variables.

Q: 1. Determine the LSRL equation using the format y-mx+b. 2. Describe the slope (m) and its meaning in…

A: Dear student according to the guidelines we solve only first three subparts . Solution The given…

Q: The correlation coefficient is used to determine: Select one: a. None of the choices b. A specific…

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Q: State whether the following statement is true or false: “The correlation between shoe size and…

A: Correlation measures the strength of association.  According to the provided information, the…

Q: Suppose you are examining the correlation between two quantitative variables, and the correlation,…

A: The objective is to determine the condition for which, the correlation coefficient, r which is…

Q: Correlation Test 13. Random students are selected from a history class and asked the number of hours…

A: The required calculation can be defined by the procedure Set up the hypothesis The test statistics…

Q: Erica is an inventor. Her portfolio tacks the performance of Google and wants to add the stock of…

A: Let the random variables, X and Y represent the Google data and Apple data, respectively. The…

Q: A random sample of college students was surveyed about how they spend their time each week.  The…

A: Correlation is a useful association statistic.

Q: What is the value of the linear correlation coefficient "r" for the fol y 2 4 1.

A: The formula for the relation correlation coefficient is given as follows r=∑xi-x∑yi-y∑xi-x2∑yi-y2

Q: A researcher wanted to know the relationship between sales per 24h in a department store, the amount…

A: The given output shows correlations, p-values and the sample size.

Q: What is the value of the correlation coefficient in the sample? (to the nearest 2 decimals) If…

A: Given: x y 15 40 17 40 19 50 20 52 20 50 21 65 22 65 22 66 23 70

Q: For each of a number of cities across Canada, the number of people with Cantonese as a mother tongue…

A: Correlation: Correlation a measure which indicates the “go-togetherness” of two data sets. It can be…

Q: ou would expect ______ between the number of hours of sleep per day and age for children between the…

A: Correlation measures the strength of the linear relationship.

Q: The maximum weights (in kilograms) for which one repetition of a half-squat can be performed and the…

A:

Q: Fifty-four wild bears were anesthetized, and then their weights and chest sizes were measured and…

A: Given: Correlation coefficient r = 0.955798 Critical r = ±0.2680855 p-value = 0

Q: se the sample data to construct a scatterplot. Use the first variable for the x-axis. Based on the…

A: A scatter plot is a graphical representation of two variables to investigate if there exists an…

Q: Which plot indicates a correlation of 0.7? Y & R 8 50 T 10

A: Here, first figure shows negative correlation because trend line goes negative axis.

Q: An r value of .8 indicates a strong positive correlation.  True  False

A: Given: To determine whether the given statement is true or false.

Q: a. Which is the explanatory and which is the response variable? b. According to the scatterplot…

A: "Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: The chief financial officer of a school district wants to determine if there is a statistically…

A: Solution : (A) Given data is : Sr.  No. Test Score(x) Expenditure (y) 1 913 7995 2 903 76 3…