QUESTION 11 An express delivery service company recently conducted a study to investigate the relationship between the cost of shipping a package (Y), the package weight(X;), and the distance shipped (X2). Twenty packages were randomly selected from among the large number received for shipment, and a detailed analysis of the shipping cost was conducted for each package. The sample information is shown in the table below: Ch 10 #13 Data file.xİsx Cost of Shipment Package Weight Distance Shipped $3.40 4.3 100 $2.10 0.5 165 $11.10 5.3 245 $2.70 6.1 52 $2.00 4.7 58 $8.10 3.7 255 $15.60 7.2 265 $5.10 2.6 214 $1.10 0.8 105 $4.50 0.95 285 $6.10 6.4 120 $1.80 1.3 95 $14.60 6.7 245 $14.10 7.7 195 $9.30 6.8 165 $1.20 $12.20 $1.60 2.9 50 8.3 165 0.9 85 $8.10 4.6 207 $4.00 3.4 150 Estimate a simple linear regression model involving shipping cost and package weight. Interpret the slope coefficient of the least squares line. O a. As the package weight increases by one pound, the shipping cost increases by $1.49 on average. O b. As the package weight increases by 1.49 lbs, the shipping cost increases by $1 on average. O. As the package weight increases by one pound, the shipping cost increases by $0.08. O d. We cannot determine this effect with this regression as the results are insignificant.

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Power Operation

Power operation is topic of algebra in Math. It is use to represent repeated multiplication. Very big number and very small number can be easily express using power operation. Power operation is useful in many fields. In space engineering, it helps in representing the distance or size of particular heavenly body. In medical field, it is used to represent very small size. In medical field it helps to mention size of bacteria or virus. 

Exponents

The exponent or power or index of a variable/number is the number of times that variable/number is multiplied by itself.