If required, enter negative values as negative numbers. SelectScatter diagram 1S

Question

If required, enter negative values as negative numbers.

SelectScatter diagram 1Scatter diagram 2Scatter diagram 3None of these choicesItem 1

Does a linear relationship appear reasonable?
SelectYes, a positive oneYes, a negative oneNoItem 2

b. Develop the least squares estimated regression equation that relates the distance to work to the number of days absent (to 4 decimals).
=  +  x

c. Predict the number of days absent for an employee who lives 5 miles from the hospital (round to nearest whole number).
days

Explanation / Answer

correct scatterplot is diagram 1)

yes , there is negative linear relation

y^ = 8.0978 -0.3442 *x

c)

when x = 5

y^ = 8.0978 -0.3442 *5

=6.3768

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SUMMARY OUTPUT Regression Statistics Multiple R 0.843121469 R Square 0.710853812 Adjusted R Square 0.674710539 Standard Error 1.289414821 Observations 10 ANOVA df SS MS F Significance F Regression 1 32.69927536 32.69927536 19.66766549 0.002182936 Residual 8 13.30072464 1.66259058 Total 9 46 Coefficients Standard Error t Stat P-value Lower 95% Intercept 8.097826087 0.808822137 10.01187494 8.4133E-06 6.232678894 distance -0.3442029 0.077613652 -4.434824178 0.002182936 -0.5231803

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