Hi,can you help me answer the questions.Give correct and accurate answers for the whole questions.be very clear.give clear and neat writing.

QMT 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 -WNTOAU 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 answer. (3 marks)QUESTION 1 The electric bills (RM) for all the schools in Town A are given below: 1100, 990, 1706, 1891, 2050, 1482, 2851, 1231, 1051, 2005, 2511, 1556 a) Find the mean and variance for the above data. (5 marks) b) If the mean and variance of the electric bills for town B are 1450 and 202500 respectively, which town shows more consistent distribution of electric bills? (4 marks) c) State the distribution of the data set by using Pearson's coefficient of skewness. (3 marks) QUESTION 2 The table below shows QMT245 test scores in one of UITM branch campuses. Test score Number of students 16 - 25 5 26 - 35 12 36 - 45 20 46 -55 30 56 -65 18 66 - 76 15 a) Construct a frequency polygon and determine the mode. (5 marks) b) Calculate the mean and standard deviation for the scores achieved by this campus. (5 marks) c) Determine the shape of the distribution and comment on your