QMB3200 Exam 1 QUESTIONS AND CORRECT ANSWERS|ALREADY GRADED A+

QMB3200 Exam 1 QUESTIONS AND CORRECT ANSWERS|ALREADY GRADED A+ In a data set, the number of observations will always be the same as the number of _____. elements data sets variables data - Answer- elements Data collected at the same, or approximately the same, point in time are _____ data. static time series cross-sectional one-dimensional - Answer- cross-sectional When the data are labels or names used to identify an attribute of the elements, the variable has which scale of measurement? interval ordinal nominal ratio - Answer- nominal The entities on which data are collected are _____. elements sets populations samples - Answer- elements The graph below best exemplifies a _____. bar graph time series graph line graph cross-sectional graph - Answer- cross-sectional graph Which of the following is an example of categorical data? number of square feet of carpet social security number score on a multiple-choice exam height, in meters, of a diving board - Answer- social security number When the data are labels or names used to identify an attribute of the elements and the rank of the data is meaningful, the variable has which scale of measurement? ordinal nominal interval ratio - Answer- ordinal Which of the following is an example of quantitative data? the player's number on a baseball uniform the part number of an inventory item the serial number on a one-dollar bill the number of people in a waiting line - Answer- the number of people in a waiting line In a questionnaire, respondents are asked to record their age in years. Age is an example of a _____. categorical variable categorical or quantitative variable, depending on how the respondents answered the question quantitative variable ratio variable - Answer- quantitative variable Facts and figures collected, analyzed, and summarized for presentation and interpretation are called _____. variables data variables and elements elements - Answer- data Quantitative data _____. are always labels are always nonnumeric may be either numeric or nonnumeric are always numeric - Answer- are always numeric Which of the following is NOT an example of an existing source of data? internal company records U.S. Census Bureau the Internet All of these are examples of existing sources of data. - Answer- All of these are examples of existing sources of data. Statistical studies in which researchers control variables of interest are _____ studies. experimental observational control observational non-experimental - Answer- experimental Statistical studies in which researchers do not control variables of interest are _____. uncontrolled experimental studies observational studies not of any value experimental studies - Answer- observational studies The most common type of observational study is a(n) _____. debate statistical inference experiment survey - Answer- survey