Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Suppose we have 378 observations in our data and for each we have recorded two numeric attributes x and y Sample average of x is

image text in transcribed
image text in transcribed

Suppose we have 378 observations in our data and for each we have recorded two numeric attributes x and y Sample average of x is 1000 Sample average of y is 100 Sample variance of x is 2500 Sample variance of y is 25 Note that our sample covariance is equal to the product of the correlation coefficient sample standard deviation of x and sample standard deviation of y i e Sxy xy Sx Sy Suppose our sample covariance sxy is 175 then our correlation coefficient is closest to Do D0 3 0 0 5 0 0 7 0 9 Again suppose our sample covariance sxy is 175 then our regression line slope is closest to D 0 014 2 8 0 042 0 1 4 D 0 07 Again suppose our sample covariance sxy is 175 then our regression line y intercept is closest to 142 0 114 D 1500 170 2900

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

CAD/CAM Systems Planning And Implementation

Authors: Charles S Knox

1st Edition

1000146383, 9781000146387

More Books

Students also viewed these Mathematics questions

Question

5. Describe the economic value added (EVA) method

Answered: 1 week ago