A transportation entrepreneur who uses a Truck with Cool Storage wants to find out how much influence the distance trave

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A transportation entrepreneur who uses a Truck with Cool Storage
wants to find out how much influence the distance traveled, the air
temperature in the truck and the speed of the truck on the damage
to the fruits that are being transported. This method is carried
out by transportation entrepreneurs in the context of developing
services to their customers. For this purpose, 7 observations were
made (as a sample) and the following data were obtained:
No.
mileage (km) (100)
Speed
(km/hour)
(10)
temperature (Co)
Damage percentage
1.
2.
3.
4.
5.
6.
7.
2,8
3,9
5,2
4,8
6,1
5,5
6,2
8
7
5
6
9
4
6
4
9
10
8
7
6
8
7
6
7
10
8
3
5
a. Determine the equation of the
multiple regression line and test the significance of each
regression coefficient using α = 5%.
b. Calculate the magnitude of the
multiple correlation coefficient.
c. Test the regression coefficients simultaneously, with a 95%
confidence level
d. Determine what percentage of the fruit is damaged in
transportation, if the distance traveled is 750 km at a speed of
100 km/h and the temperature is 9oC