QMS 102 Study Guide - Quiz Guide: Zip Code, Level Of Measurement, Integer Sequence

• School: Ryerson University
• Department: Quantitative Methods
• Course: QMS 102
• Professor: Nursel Ruzgar

Document Summary

Data: 1) observed values of variables, 2)responses to a survey. Inferential statistics: drawing conclusions and making decisions concerning a population based on only the sample data. Population: all of the members of a group about which you want to draw a conclusion. Sample: portion of the population selected for analysis. Parameters: a numerical measure that describes a characteristic of a population. Notatio(cid:374): i(cid:374)dicates population mean i(cid:374)di(cid:272)ates populatio(cid:374) sta(cid:374)dard de(cid:448)iatio(cid:374). Statistics: a statistic is a numerical measure that describes a characteristic of a sample. Notation: x indicates sample mean s indicates sample standard deviation. Statisti(cid:272)s is the science of collecting, organizing, presenting, analyzing, and interpreting data to assist in making effective decisions. Variable: a characteristic of a population or sample that is of interest, (headings). Minimum deposit to open, minimum balance to avoid fee etc. 100, 24, 75: dis(cid:272)rete: disti(cid:374)(cid:272)t (cid:448)alues, (cid:374)o fra(cid:272)tio(cid:374)s, (cid:272)o(cid:374)ti(cid:374)uous: (cid:272)a(cid:374) assu(cid:373)e a(cid:374)(cid:455) (cid:448)alue (cid:449)ithi(cid:374) a ra(cid:374)ge.