e - King Fahd University of Petroleum and Minerals

More documents

Recommendations

Info

STAT 211 Business Statistics I 2 Q1. (12 pts.) True or False: STATEMENT T/F 1. Statistics is the science of collecting, summarizing, analyzing, and drawing conclusions. 2. The primary tools used to draw inferences in statistics are charts and graphs. 3. Open-ended questions are typically included in a survey when the objective is to provide the maximum opportunity for the respondent to express his or her opinion. 4. Selection bias occurs when the respondent decides which of the questions on the survey to answer. 5. If stratified random sampling is performed correctly, one of the advantages is that the total required sample size to generate a specified level of information may be less than what would be required from a simple random sample. 6. Cluster sampling and stratified random sampling are essentially the same type of statistical sampling technique. 7. Nominal data are typically considered to be qualitative. 8. The data level that will provide the greatest flexibility when it comes to analyzing the data is nominal data. 9. A variable which has all the properties of an interval variable, but also has a true zero, is a ratio level variable 10. A qualitative variable can be either nominal or ordinal, but cannot be interval or ratio level. 11. A small engine repair shop tracks the number of customers who call each day. This variable is a time series variable and also ratio level. 12. Data collected on marital status (married, divorced, single, other) would be an ordinal level variable.
STAT 211 Business Statistics I 3 For Q2, write all your choices in this table: Question Answer Q1 a b c d Q2 a b c d Q3 a b c d Q4 a b c d Q5 a b c d Q6 a b c d Q7 a b c d Q8 a b c d Q9 a b c d Q10 a b c d Q11 a b c d Q12 a b c d Q13 a b c d Q14 a b c d Q15 a b c d
Page 1: STAT 211 Business Statistics I 1 KI
Page 5 and 6: STAT 211 Business Statistics I 5 5.
Page 7 and 8: STAT 211 Business Statistics I 7 13
Page 9 and 10: STAT 211 Business Statistics I 9 Q5
Page 11 and 12: STAT 211 Business Statistics I 11 Q
Page 13: STAT 211 Business Statistics I 13

e - King Fahd University of Petroleum and Minerals

Create successful ePaper yourself

Delete template?

Save as template?