Frted Line Plot Regression Analysis: COST versus NUMPORTS Analyaia of Varlance s

Question

Frted Line Plot Regression Analysis: COST versus NUMPORTS Analyaia of Varlance source ODF NUMPORTS Ad) HS F-Value P-Value 1751268376 175126837 4-420.000 Regzession 1752268376 17512837 94-40-000 Error Lack-of-Fit 165270907 206588631.44 0-383 4573 Total Mode1 Summary 306.91 88.727-7 Coeffleients Coet SE Coet T-Value P-Value vIr Term Constans 16594 2607 HUMPORTS €50,2 66 . 9 9.72 ?.000 1.00 €.10 ?.000 Regzeasion Equation COST-16594+650-2 NUMPORTS Fita and Diagnoatics for Unurual Observacsona obs COSI Fi Resid Std Resid 52388 60805-841 10 23444 32198-6754 -2.36 R 2.15 R

Explanation / Answer

a)
form - linear
direction - positive
strength - strong

b)
y^ = 16594 + 650.2 * numports

c)
fixed cost = 16594
standard error of standard error = 2687
d)
variable cost = 650.2
standard error of variable cost = 66.9
e)
standard error = 4306.91
f)R^2 = 88.72 %
hence 88.72%

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