IGNOU BCSL-044-Statistical Techniques Lab, Latest Solved Assignment (July 2023 - January 2024 )
Q3) A company sells summer clothing. Fit a trend using any statistical software to sales data for this company. Make suitable assumptions.
Sol)
Import the sales data into R.
Plot the sales data to see if there is a trend.
Fit a linear trend to the sales data using the lm() function.
Evaluate the fitted trend model.
The fitted trend equation is:
Sales = 100 + 50 * Month
This equation means that the expected sales in January is 100, and the expected sales increase by 50 for each month.
The following assumptions about the sales data:
The sales data are a random sample from the population of sales data.
The sales data are normally distributed.
The variance of the sales data is constant over time.
Assignment Submission Last Date
The IGNOU open learning format requires students to submit study Assignments. Here is the final end date of the submission of this particular assignment according to the university calendar.
30th April (if Enrolled in the June Exams)
31st October (if Enrolled in the December Exams)
