Bus308 Week 1

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1.2 - Below we list several variables. Which of these variables are quantitative and which are qualitative? Quantitative means that the measurement of the value gives an actual quantity that can mean “how much”, or “how many”. Whereas qualitative means we are simply recording into which of the categories the element falls. a. The dollar amount on an accounts receivable invoice. – This would be quantitative because we are given the actual quantity in dollar amounts. b. The net profit for a company in 2009 – This would be quantitative as well since we are seeing the actual profit number for the company. c. The stock exchange on which a company’s stock is traded. – This would be a qualitative element since all we are doing here is categorizing the companies stocks. d. The national debt of the US in 2009. - This would be quantitative as well since we are seeing the national debt for the country. e. The advertising medium used to promote a product. - This would be a qualitative element since we are categorizing and listing the advertising medium the company used for promotion. 1.17 – Classify each of the following qualitative variables as ordinal or nominative. An ordinal variable is a qualitative variable for which there is a meaningful ordering or ranking, of the categories. A nominative variable is a qualitative variable for which there is no meaningful ordering, or ranking, of the categories. a. Statistics course letter grade. – this would be an ordinal variable since there is a meaning to the ranking, one letter grade is more significant than the other. b. Door choice on Lets Make a Deal. – This would be nominative since there are no signifigant measures between the 2 doors. c. Televisions show classifications. – This would be ordinal since there is a progression between the 4 classifications as to the suitable audience.

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