GIVE TYPED WRITING SO I CAN UNDERSTAND CLEARLY.

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 OCT2012

QUESTION 1 The content of liquid detergent X is being analyzed. Twelve bottles were randomly selected from the production process and measured. The results are as follows (in liter): 1.53 1.57 1.61 1.57 1.49 1.51 1.52 1.62 1.49 1.53 1.51 1.59 a) State the variable and type of variable in the data above. (2 marks) b) Compute the mean and standard deviation for the content of liquid detergent bottles. (5 marks) c) Calculate the median and interpret its meaning. (3 marks) d) Determine the shape of the distribution by using appropriate calculation. (3 marks) QUESTION 2 The following table shows the distribution of time (in hours) spent per week by Class A for their online participation in a particular subject. Time (hours) Number of Students 1.0 - 1.4 4 1.5 - 1.9 5 2.0 - 2.4 13 2.5 - 2.9 10 3.0 - 3.4 8 a) Find the mean and standard deviation for the time spent on their online participation. (5 marks) b) Draw a 'less than' ogive for the above data. (3 marks) c) The mean and standard deviation for Class B online participation are 3.41 hours and 0.53 hours respectively. Determine which class is more consistent in time spent for their online participation