Completion Status: Question 3 [Total: 20 marks] In the study of a new anti-hypertensive medication, systolic blood pressures are measured at baseline (the start of the study before any treatment is administered). The blood pressures data as follows: 120 112 138 145 135 150 145 163 148 128 143 156 160 142 150 a) Compute the sample mean and interpret it. b) Compute the median. c) State the mode. d) Calculate the sample range. e) Calculate the sample variance f Calculate the standard deviation. Questions 4 a) A survey of 976 Malaysia's households found that 32% of the households own two cars. Based on the above statement, identify the population and the sample. (2 marks) b) Based on the following statements, identify the level of measurement of the data. (Nominal, Ordinal, Interval, or Ratio). (4 marks) 1.The cell phone listed as 5th best on an online electronics review website. 2.The temperatures in cities throughout the country that are listed in most newspapers. 3.Ethnic group categories of people in a neighbourhood. 4.The birth weights of babies who were born at Putrajaya General Hospital last week. Questions 5 c) Determine whether the following data are quantitative data or qualitative data. If the data are quantitative, hence categorize as discrete or continuous. (6 marks) 1. The dollar amount on an accounts receivable invoice. il. The advertising medium (radio, television, or print) used to promote product. fil. The number of students who enrolled for the Business Mathematics subject. iv. The preferred transportation to school