Straighterline Business Stats Final Questions With Complete Solutions

The main purpose of descriptive statistics is to correct answer: Summarize data in a useful and informative manner Which word is NOT part of the definition of descriptive statistics? correct answer: Predicting A marketing class of 50 students evaluated the instructor using the following scale: superior, good, average, poor, and inferior. The descriptive summary showed the following survey results: 2% superior, 8% good, 45% average, 45% poor, and 0% inferior. correct answer: c. Most students rated the instructor as poor or average. What type of variable is the number of robberies reported in your city? correct answer: Quantitative The Nielsen Ratings break down the number of people watching a particular television show by age. What level of measurement is age? correct answer: Ratio What level of measurement is a person's "favorite sport"? correct answer: Nominal The final rankings of the top 20 NCAA college basketball teams are an example of which level of measurement? correct answer: Ordinal What level of measurement is the Centigrade temperature scale? correct answer: Interval A survey includes a question regarding marital status that has the following responses: single, married, divorced, separated, or widowed. What is the scale of measurement for this question? correct answer: Nominal A group of women tried five brands of fingernail polish and ranked them according to preference. What level of measurement is this? correct answer: Ordinal Shoe style is an example of what level of measurement? correct answer: Nominal When TV advertisements report "2 out of 3 dentists surveyed indicated they would recommend Brand X toothpaste to their patients," an informed consumer may question the conclusion because the: correct answer: Advertisement does not include the total number of dentists surveyed A sample of the paramedical fees charged by clinics revealed these amounts: $55, $49, $50, $45, $52, and $55. What is the median charge? correct answer: 51.00 For a data set with an odd number of observations that have been sorted from smallest to largest values, where is the median