Can you help me solve the second part of this question regarding this problem be

Question

Can you help me solve the second part of this question regarding this problem below? I need PART B answered, A as you can see is already answered-

Develop a simple linear regression equation to forecast annual sales. For this? regression, the dependent? variable, Y, is the demand in each year and the independent? variable, X, is the index for the year? (i.e., X = 1 for year? 1, X = 2 for year? 2, and so on until X = 5 for year? 5).The regression is given by the equation Y= __+__X (round to one decimal place)

Additional data on the monthly sales of 10-ounce shampoo bottles for the past 5 years below:

Cannister, Inc., specializes in the manufacture of plastic containers. EEB Click the icon to view the data on the monthly sales of 10-ounce shampoo bottles for the past five years a. Using the multiplicative seasonal method, calculate the monthly seasonal indices. (Enter your responses rounded to three decimal places) Month January February March April May June Average seasonal index 0.783 0.697 0.860 0.927 0.992 1.110 1.197 1.318 1.168 1.173 0.955 0.821 August September October November December

Explanation / Answer

Y = 10760.6 + 1100.6X

Y = a +bX, where

a = x2 y- x xy and

b= n x2 -( x)2 n xy- x y n x2 -( x)2

in this case x is years and y is demand of bottles

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