Consider the following data reflecting lengths of stay in a hospital (recorded in days) and the total charge (in thousands, e.g. $6- $6.000) for sixpatients undergoing a minor surgical procedure.Length of StayTotal Charge6.79.7.2108129.4157.9Let total charge be the response variable and length of stay be the explanatory variable. Calculate the correlation coefficient. Conduct a test to see ifthe sample correlation is different than 0 at the 0.05 level of significance. Choose all of the correct answers.O Coefficient of Determination: 0.548O Conclusion: Reject the Null HypothesisO Sum of (Zx Zy): 3.700O t-critical value: 2.571O test statistic: 2.202Sample Correlation Coefficient: 0.740

From the given data we find correlation coefficient and conduct Hypothesis test for correlation.

Answered: Consider the following data reflecting…

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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You wish to determine if there is a positive linear correlation between the age of a driver and the number of driver deaths. The following table represents the age of a driver and the number of driver deaths per 100,000. Use a significance level of 0.05 and round all values to 4 decimal places. Driver Age Number of Driver Deaths per 100,000 21 19 27 20 58 31 77 31 47 24 50 26 Ho: ρ = 0Ha: ρ > 0 Find the Linear Correlation Coefficient r = Find the p-value p-value = The p-value is Greater than αα Less than (or equal to) αα The p-value leads to a decision to Reject Ho Accept Ho Do Not Reject Ho
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3
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