Guru
07-10-2010, 03:56 PM
Question 1:
For the following values of x and y, calculate slope and intercept.
y x
10 3
13 5
23 7
25 9
40 10
42 12
45 15
Question: 2
Find the shape of distribution (i.e. it is positively-skewed distribution or negatively-skewed distribution) using 5-number summary of the following data.
15,10,14,21,16,18,22,27,25,24,29,30
Question: 3
The data of following table gives the weekly maintenance cost (Rupees) to the age (in months) of 5 machines of similar type in a manufacturing company.
Age (X) 5 15 30 50 60
Cost (Y) 190 250 310 350 395
Find linear regression equation, y = ax + b, where a is the slope and b is the y-intercept.
Question 4:
If FC=2540; VC=120; S=168 and capacity = 278 units, then what are the unit sales if there is net loss of Rs. 290.
Question 5:
Following is the sale records broken down quarterly
473
By using seasonal variation find the forecast sale for year 2008 (of all quarters).
Solution:
Download the attachment for the solution.
472
For the following values of x and y, calculate slope and intercept.
y x
10 3
13 5
23 7
25 9
40 10
42 12
45 15
Question: 2
Find the shape of distribution (i.e. it is positively-skewed distribution or negatively-skewed distribution) using 5-number summary of the following data.
15,10,14,21,16,18,22,27,25,24,29,30
Question: 3
The data of following table gives the weekly maintenance cost (Rupees) to the age (in months) of 5 machines of similar type in a manufacturing company.
Age (X) 5 15 30 50 60
Cost (Y) 190 250 310 350 395
Find linear regression equation, y = ax + b, where a is the slope and b is the y-intercept.
Question 4:
If FC=2540; VC=120; S=168 and capacity = 278 units, then what are the unit sales if there is net loss of Rs. 290.
Question 5:
Following is the sale records broken down quarterly
473
By using seasonal variation find the forecast sale for year 2008 (of all quarters).
Solution:
Download the attachment for the solution.
472