genlculate coefficient of rank correlation from the data given below:Marks in Paper IMarks in Paper II20143040305032097040458065

Rank of paper-1 (X) Rank of paper-2 (Y) d=X-Y d2 7 6 1 1 6 7 -1 1 5 5 0 0 4 4 0 0…

Answered: Leilculate coefficient of rank…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Listed below are paired data consisting of amounts spent on advertising (in millions of dollars) and the profits (in millions of dollars). Determine if there is a significant negative linear correlation between advertising cost and profit . Use a significance level of 0.05 and round all values to 4 decimal places. Advertising Cost Profit 3 24 4 23 5 20 6 23 7 23 8 19 9 19 10 26 Ho: ρ = 0Ha: ρ < 0 Find the Linear Correlation Coefficient r = Find the p-value p-value =
A grocery store manager did a study to look at the relationship between the amount of time (in minutes) customers spend in the store and the amount of money (in dollars) they spend. The results of the survey are shown below. Time 17 18 6 20 28 16 20 Money 50 55 37 79 97 60 76 Find the correlation coefficient: r=r= Correct Round to 2 decimal places. The null and alternative hypotheses for correlation are:H0:H0: ? μ ρ r Correct == 0H1:H1: ? μ r ρ Correct ≠≠ 0 The p-value is: Correct (Round to four decimal places) 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. There is statistically insignificant evidence to conclude that a customer who spends more time at the store will spend more money than a customer who spends less time at the store. There is statistically significant evidence to conclude that there is a correlation between the amount of time customers spend at the store and the amount of…
Determine if age is correlated to glucose level of six individuals. Use Pearson r correlation coefficient Subject Age (x) Glucose level (y) 1 33 99 2 28 67 3 25 78 4 43 75 5 57 88 6 59 91 Ho: Ha: Calculated Value: Tabulated Value: Decision: Conclusion:
Calculate the coefficient of correlation from the following data and comment on the result : Experience (X): 16 Preformance (Y): 23 12 22 18 24 4 17 3 19 10 20 12 21 18
The following data gives the number of hours 10 students spent studying and their corresponding grades on their midterm exams. Hours Spent Studying 0 0.5 1.5 2 2.5 3 3.5 4 4.5 5.5 Midterm Grades 63 66 69 75 78 81 84 87 90 96 Estimate the correlation in words, positive, negative, no correlation. (a) Positive (b) Negative (c) No correlation
The director of surgery at a local hospital is interested in underständing his unit's costs. An assistant collected data for the past 36 months on unit cost (labor, supplies, and so on) along with the number of procedures performed in the unit The assistant analyzed the data using a spreadsheet program, and the following output was generated Equat ion Intercept Coefficient on procedures Statistical data Correlation coefficient 1,010, ००4० 250 0.538 The unit is planning to perform an average 12,000 procedures per month for the coming year. Required: a. Use the regression output to write the surgical unit cost equation b. Based on the cost equation, compute the estimated costs for the surgical unit per month for the coming year. c. The director of surgery has asked you for advice on whether he should rely on the estimate. Complete this question by entering your answers in the tabs below. Required A Required B Required C Use the regression output to write the surgical unit cost equation.…
Using the chart as a guide, what value of the linear correlation coefficient (r) makes sense according to how the data is trending? SAT score_GPA scatterplot.pdf
SPSS: Correlation Use SPSS to calculate the appropriate correlation coefficient for the following data for “Hours of Exercise” and “Life Satisfaction.” (0 = Not at all satisfied). Provide an APA-style results section write – up. (b) Graph the relationship. Complete the write-up on a word document and upload the file for submission. Hours of Exercise Life Satisfaction 2 6 0 2 5 13 6 15 1 3 2 6 4 10 4 12 3 8 4 10 APA Template for reporting a Pearson’s Correlation Coefficient You will want to include four main points about your Pearson’s r when communicating results to others. Test type and use You want to tell your reader what type of analysis you conducted. You also want to tell your reader why this particular analysis was used. What did your analysis test for?
You are given the total number of weekly sales from two employees over a 7-week period. Calcu- late the Pearson correlation coefficient given the following data: Week 1 Week 2 Week 3 Week 4 Week 5 Week 6 Week 7 Employee A Sales 15 20 25 18 22 30 28 Employee B Sales 12 18 22 15 19 27 25
Weight (lbs.) 173 184 194 214 168 220 188 188 207 167 217 Systolic Blood Pressure 132 143 153 162 154 168 137 149 159 128 1 1. The sample correlation coefficient is _____________
(e)
roblem #8: - The table shows the scores of 10 students in Mathematics and in English. Analyze and interpret the results exhaustively. (Use Pearson correlation coefficient test) Student Math Scores English Scores A B C D E F G H I J roblem #9: 60 77 80 70 84 74 80 78 90 80 65 80 89 76 80 78 76 79 85 95

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Leilculate coefficient of rank correlation from the data given below: Marks in Paper I Marks in Paper II 20 14 30 40 30 50 32 60 40 70 45 80 65