3.A Bloomberg Businessweek North American subscriber study collected data from a sample of 2861sub-scribers. Fifty- nine percent of the respondents indicated an annual income of $ 75,000 or more,and 50% reported having an American Express credit card.a. What is the population of interest in this study?b. Is annual income a categorical or quantitative variable?c. Is ownership of an American Express card a categorical or quantitative variable?d. Does this study involve cross- sectional or time series data?e. Describe any statistical inferences Bloomberg Businessweek might make on the basisof the survey.4.Table 1.8 shows a data set containing information for 25 of the shadow stocks tracked by the AmericanAssociation of Individual Investors. Shadow stocks are common stocks of smaller companies that arenot closely followed by Wall Street analysts. The data set is also on the website that accompanies thetext in the file named Shadow02.a. How many variables are in the data set?b. Which of the variables are categorical and which are quantitative?TABLE 1.8 DATA SET FOR 25 SHADOW STOCKSGrossProfitMargin(%)MarketTickerSymbolСар($ millions)Price/EarningsRatioCompanyDeWolfe CompaniesNorth Coast EnergyHansen Natural Corp.MarineMax, Inc.Nanometrics IncorporatedExchangeAMEXDWL36.48.436.7OTCNCEB52.56.259.3ОТСHANS41.114.644.8NYSEHZO111.57.223.8OTCОТСNANO228.638.053.3TeamStaff, Inc.TSTFETCMSSSEN92.133.54.1Environmental TectonicsAMEX51.135.835.9Measurement SpecialtiesSEMCO Energy, Inc.Party City CorporationEmbrex, Inc.АМEХNYSEOTC101.8193.497.226.837.618.723.6PCTY15.936.4ОТСEMBX136.518.959.5Tech/Ops Sevcon, Inc.ARCADIS NVAMEXTO23.220.735.7ОТСОТСARCAF173.48.89.6XINGEWSTQiao Xing Universal Tele.Energy West IncorporatedBarnwell Industries, Inc.Innodata Corporation64.322.130.8ОТС29.19.716.3AMEXBRN27.37.473.4ОТСINOD66.111.029.6MDCIINMRYMedical Action IndustriesInstrumentarium Corp.Petroleum DevelopmentDrexler Technology Corp.Gerber Childrenswear Inc.Gaiam, Inc.Artesian Resources Corp.York Water CompanyOTC137.1240.926.93.630.6ОТС52.1ОТСPETD95.96.119.4233.6126.9ОТСDRXR45.653.6NYSEGCW7.925.8GAIAARTNAОТС295.562.868.220.560.7ОТС45.5OTCYORW92.222.974.2

NOTE:As per the guidelines, we are supposed to solve the first question only. a).The population of…

3. A Bloomberg Businessweek North American subscriber study collected data from a sample of 2861 sub-scribers. Fifty- nine percent of the respondents indicated an annual income of $ 75,000 or more, and 50% reported having an American Express credit card. a. What is the population of interest in this study? b. Is annual income a categorical or quantitative variable? c. Is ownership of an American Express card a categorical or quantitative variable? d. Does this study involve cross- sectional or time series data? e. Describe any statistical inferences Bloomberg Businessweek might make on the basis of the survey.

3. A Bloomberg Businessweek North American subscriber study collected data from a sample of 2861 sub-scribers. Fifty- nine percent of the respondents indicated an annual income of $ 75,000 or more, and 50% reported having an American Express credit card. a. What is the population of interest in this study? b. Is annual income a categorical or quantitative variable? c. Is ownership of an American Express card a categorical or quantitative variable? d. Does this study involve cross- sectional or time series data? e. Describe any statistical inferences Bloomberg Businessweek might make on the basis of the survey.

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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