see attachment for instrusctions Document Preview: ECON XXXXXXXXXXGraded Assignment 1This assignment is to be prepared as a WORD document. It covers subject matter in Units 3, 4 and 5. This...

ECON1005 2103-2014 Graded Assignment 1 This assignment is to be prepared as a WORD document. It covers subject matter in Units 3, 4 and 5. This assignment has an allocation of 10 marks. see marking guidelines below. Note that your assignment should be entitled: Your First NameYour Last Name ECON1005 Assignment #1. For example: Mary McDonaldECON1005Assignment #1 QUESTION 1 [6 marks] The number of items sold per month at Company ABC was recorded and inputted intoMINITAB for analysis. The following exhibits (Exhibits 1 and 2) were subsequentlygenerated. Exhibit 1 Stem-and-Leaf Display: Sales Stem-and-leaf of Sales N = ? Leaf Unit = 10 32001423524527299738325)3445551136793897401113433145 [All relevant working must be shown.] continue overleaf.../ Exhibit 2 Descriptive Statistics: Sales VariableN N*MeanTrMean StDev Minimum Q1 Sales? 0343.3344.9 76.2 202.0 292.3 VariableMedianQ3Maximum Sales ??408.3??? Determine the missing values of "?"," ??" and "???" from the information inExhibits 1 and 2.[3 marks] Is the distribution of the number of items sold symmetric? Give reasons for youranswer.[3 marks] QUESTION 2 [44 marks] (a) A researcher is interested in investigating the age distribution (18-24, 25-34, 35-44,45-54, 55-64, 65+) of adult online social network users (for example: Facebook, Twitter,LinkedIn, Pinterest, MySpace etc). He surveyed 100 randomly selected adult onlinesocial network users to gather data on their age. The data gathered was summarized in thetable below. AgeIntervalFrequency18 - 241825 - 342635 - 442745 - 542055 - 64765+2TOTAL100 (i) For each of the following charts, state whether it could be suitable to represent the agedistribution of social network users summarized in the table above: a bar chart,histogram, stem-and-leaf diagram, box-and-whisker diagram? Give reason for youranswer.[8 marks] continue overleaf.../ Estimate the mean age of the...