Answer to Question #55142 in Statistics and Probability for Anurodh

Question

a) Refills of cartons with apple juice is taking place in a plant. Data for 14 days were
collected and 100 cartons were checked every day for proper filling. Data is as
given below. Compute the UCL, LCL and CL using an appropriate control chart.
Also draw the chart.
S.NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Date 16 17 18 19 20 21 22 23 24 25 26 27 29 30 Total
X 8 2 4 1 3 3 2 4 9 7 5 8 5 9 70

b) For the following series of observations, calculate the 4 yearly centred moving
averages:
Year: 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000
Annual 2 6 1 5 3 7 2 6 4 8 3
Sales
(Rs.
Crores)