IUS 2020 reached a sample of 2,401 Internet users and 384 non-Internet users at the nationallevel and a total of 384 Internet users for each state to meet the requirement for state-levelsurveys, Table 1 shown a percentage of Malaysian internet users for the years 2018 and 2020.Respondents were selected randomly, and the interviews were carried out through telephoneinterview. IUS 2020 also focuses on emerging Internet issues introduced in the previous surveys;namely online content, online child safety and online privacy/security.Table 1. Percentage of Malaysian internet users for the years 2018 and 2020.Age(s)2018(%)2020(%)Below 150.50.415 - 197.69.320 - 2415.634.125 - 2914.311.830 - 3415.311.735 - 3910.69.540 - 4445-4910.86.47.15.950 - 546.74.555 -594.92.960 - 643.71.4Above 652.82.0From the Table 1, you need to:i. Proposed an analysis on Measures of Central Tendency by using formulae for both years,ii. Justify answer (i) by using graphs for both years,iii. Proposed a suitable chart to show a comparison data for both years,iv.Proposed an analysis on Measures of Dispersion by using formulae for both;years,

Introduction - mean=sum of all observations total number of observations Standard deviation…

Answered: IUS 2020 reached a sample of 2,401…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Bank of America's Consumer Spending Survey collected data on annual credit card charges in seven different categories of expenditures: transportation, groceries, dining out, household expenses, home furnishings, apparel, and entertainment (U.S. Airways Attache, December 2003). Using data from a sample of 42 credit card accounts, assume that each account was used to identify the annual credit card charges for groceries (population 1) and the annual credit card charges for dining out (population 2). Using the difference data, the sample mean difference was = $844, and the sample standard deviation was sd = $1,166. C) What is the point estimate of the difference between the population means? $ What is the 95% confidence interval estimate of the difference between the population means (to the nearest whole number)? ( need amount, need amount)
(Please explain what I was doing wrong)
Please show steps clearly
The State of Virginia has instituted a series of standards of learning (SOL) tests in math, history, English, and science that all high school students must pass with a grade of 70 before they are allowed to graduate and receive their diplomas. The school superintendent of Montgomery County believes the tests are unfair because the test scores are closely related to teacher salary and tenure (i.e., the years a teacher has been at a school). The superintendent has sampled 12 other county school systems in the state and accumulated the following data for average teacher salary and average teacher tenure: a. Using Excel or QM for Windows, develop the multiple regression equation for these data. b. What is the coefficient of determination for this regression equation? Do you think the superintendent is correct in his beliefs? c. Montgomery County has an average SOL score of 74, with an average teacher salary of $27,500 and an average teacher tenure of 7.8 years. The superintendent has…
5. Websites like e-rewards give airline miles or other awards to members who fill out surveys online. Members must be invited by a company such as an airline to participate and once they are a member, they will receive invitations for surveys based on qualification criteria. Discuss an advantage and a disadvantages of this data collection method. Briefly explain your choice. Advantage: Disadvantage:
What social media tools do marketers commonly use? The “2015 Social Media Marketing Industry Report” by Social Media Examiner (socialmediaexaminer.com) surveyed marketers who commonly use an indicated social media tool. Surveyed marketers who commonly use an indicated social media tool. Surveyed were both B2B marketers, marketers that primarily target consumers. Suppose the survey was based on 500B2B marketers and 500 B2C marketers and yielded the results in the following table below: SOCIAL MEDIA TOOL BUSINESS FOCUS (B2B) (%) BUSINESS FOCUS (B2C) (%) FACEBOOK 88 96 TWITTER 83 77 For each social media tool, at the 0.05 level of significance, determine whether there is a difference between B2B marketers and B2C marketers in the proportion who used each social media tool. State the complete hypotheses (hypothesis null and hypothesis alternative for question (a) above
discuss 4 importance of the Gantt chart in decision making
How could the survey type of study be helpful in arriving at solutions to the crime problem in large cities like Lahore and Karachi?
In determining the best companies to work for, a number of variables are considered, including size, average annual pay, and employee turnover rate. Moreover, employee surveys are conducted to assess aspects of the organization's culture, such as trust and openness to change. In an attempt to determine what affects turnover rate, a sample of 33 companies was randomly selected, and data were collected on the average annual bonus and turnover rate (%) for 2008. In addition, a questionnaire was administered to the employees of each company to arrive at a trust index (measured on a scale of 0-100). Below are the multiple regression results. Predictor Coef SE Coef T P R-square Constant 12.1005 0.7826 15.46 0.000 79.6% Trust Index -0.07149 0.01966 -3.64 0.001 Average Bonus -0.0007216 0.0001481 -4,87 0.000 The correct null hypotheses for testing the regression coefficient of Trust Index (TI) is βTI ≠ 0…

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