PROVIDE TYPED WRITING SO THAT I CAN UNDERSTAND BETTER.

Kindly reply with correct answers and step by step working.mention clearly about the formula and conversion.do not skip steps.

QMT110 APRIL2011

QUESTION 1 The following data are the net profit (RM 000) as of January 1, 2000, for 24 cleaning services companies. 18 8 18 18 18 21 16 26 19 15 20 21 18 18 21 20 22 24 Calculate the average and standard deviation net profit for cleaning services companies. (4 marks) b) Compute the median. (2 marks) c) Compute the interquartile range. (3 marks) d) Calculate the coefficient of skewness and explain its meanings. (3 marks) QUESTION 2 A 2 Z Consultant is trying for a new scale to calculate productivity level of the estate workers through a series of training. The company wants to know the productivity level of their workers after the training session. Productivity Level Scale No. of workers Very weak 0 and less than 2.0 15 Weak 2.0 and less than 4.0 20 Average 4.0 and less than 6.0 40 Good 6.0 and less than 8.0 52 Very Good | 8.0 and less than 10.0 43 a) Calculate the mean and standard deviation for the productivity level the training. (5 marks) b) Compute the mode productivity level of the workers. (3 marks) c) Given average and variance the scale for the productivity level of the worker before training was 5.17 and 6.54 respectively, what can you conclude about the training? (4 marks)