Subject - Decision science

Q3. A) You are not advised to use Software in this case, show the calculation-steps typed in your MS-word file. In Roshni lights ( manufacturer of Mirchi lights) A production run of 2000 set of Mirchi lights being tested for the life, the data shows that life is normally distributed with an average life span of 90 days and a standard deviation of 10 days. What is the probability if a set of Mirchi lights randomly selected from that lot, survived up to 100 days? (5 Marks) Q3 B) Draw an appropriate chart to show the contribution of each category (in percent form) of Micro, small and medium Enterprises (MSMEs) at the state level. (You may use the MS EXCEL). In conclusion also write, why you have chosen this graph for this