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Kindly give correct answers and step by step working.do not skip steps.Mention clearly about the formula and the conversion.be very clear.do not skip steps.be very clear.NUMBER THE Ans CLEARLY.

QMT110 MARCH 2013

QUESTION 1 A sales researcher wanted to do a survey on the price (RM) of hard disc for Brand X. The following data are the price of hard disc for 14 companies. 198 194 192 185 191 192 186 179 181 194 183 182 184 183 a) Calculate the mean and standard deviation price for these data. (5 marks) b) Determine the median price and explain its meaning. (3 marks) c) Compute the quartile deviation and interquartile range for these data. (5 marks) QUESTION 2 The table below shows the daily yield of sugarcane (in '00kg) of Ladang Dungun in September 2012 Yield of sugarcane Number of days 30 - 34 35 - 39 40 -44 45 -49 50 - 54 55 - 59 60 - 64 a) Draw a histogram for the above data. Then, estimate the mode from the graph. (5 marks) b ) Find the mean and standard deviation. (6 marks) c) Given that the mean and variance yield of sugarcane in August 2012 are 3650 kg and 7530 kg, respectively, determine which month has more consistent yield of sugarcane. Justify your