# 202201 Tutorials 1-11.pdf - UKEQ1023 Quantitative...

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UKEQ1023 Quantitative Techniques II2022011UNIVERSITI TUNKU ABDUL RAHMANFACULTY OF ACCOUNTANCY AND MANAGEMENTTUTORIAL 11.For each of the following variables, determine whether the variable is categorical ornumerical and determine whether the variable is discrete or continuous.(i)Number of cellphones in the household.(ii)Monthly data usage (MB).(iii)Number of text messages exchanged per month.2.Identify the scale measurement likely represented by this information:(i)In rating the service provided by a receptionist, the following responses arepossible: excellent, above average, average, below average, and poor. Theresponses are coded from 1 to 5 with 5 being excellent. The scale of measurementthese represent isAnswer: _________.(ii)Professor Khezri graduated from Western Australia with a code value = 2 whileProfessor Janet graduated from Sydney University with a code value = 3. The scaleof measurement likely represented by this information isAnswer: _________.(iii). An insurance agent believes that companyAis more reliable than companyB.Which scale of measurement does this information represent?Answer: _________.3.The following is a set of the data from a sample of n = 11 items.EmployeeABCDEFGHIJKWeeks of experience (x)758361012491518Number of rejects (y)211524918303612274554Interpret the following value:i)covariance at 65.2909ii)coefficient of correlation at 1.0Class activity (Group)Student will be given a time to complete the class activity group and explain their answers.1.Health care issues are receiving much attention in both academic and political arenas. Asociologist recently conducted a survey of citizens over 60 years of age whose net worthis too high to quality for medical assistance. The ages of 25 senior citizens were asfollows:66, 68, 68, 69, 70, 73, 73, 74, 75, 76, 61, 60, 87, 89, 90, 92, 64, 65, 62, 63, 73, 81, 81, 82,86(i)Find the mean, median, and mode of this data.(ii)What is the best measurement of central tendency for this data?(iii)Compute the standard deviation of this data.
UKEQ1023 Quantitative Techniques II20220122.Social media provides an enormous amount of data about the activities and habits ofpeople using social platforms like Facebook, Instagram and Twitter. The belief is thatmining that data provides a treasure trove for those who seek to quantify and predictfuture human behavior. A marketer is planning a survey of Internet users in thePhilippines to determine social media usage. The objective of the survey is to gain insighton these three items: key social media platforms used, frequently of social media usage,and demo-graphics of key social media platform users.(a)For each of the three items listed, indicate whether the variables are categorical ornumerical. If a variable is numerical, is it discrete or continuous?(b)Develop five categorical questions for the survey.

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Statistical hypothesis testing