# QNT 275 FINAL EXAM NEW 2016

Jul 1st, 2016
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1. What is the name of the variable that’s used to predict another variable? Explanatory Standard error of the estimate Response Coefficient of determination 2. Professors at a local university earn an average salary of \$80000 with a standard deviation of \$6000. The salary distribution is approximately bell-shaped. What can be said about the percentage of salaries that are at least \$74,000? About 97.5 percent About 84 percent About 68 percent About 95 percent 3. What type of relationship is indicated in the scatterplot? A positive linear or curvilinear relationship No relationship A negative curvilinear relationship A negative linear relationship 4. The study of statistics can be defined as: the art and science of getting information from data. All of the answers the language of data. the study of collecting, analyzing, presenting, and interpreting data. 5. In the accompanying stem-and-leaf diagram the values in the stem and leaf portions represent 10s and 1s di

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QNT 275 FINAL EXAM NEW 20161. What is the name of the variable thats used to predict another variable?ExplanatoryStandard error of the estimateResponseCoefficient of determination2. Professors at a local university earn an average salary of \$80000 with a standard deviation of\$6000. The salary distribution is approximately bell-shaped. What can be said about thepercentage of salaries that are at least \$74,000?About 97.5 percentAbout 84 percentAbout 68 percentAbout 95 percent3. What type of relationship is indicated in the scatterplot?A positive linear or curvilinear relationshipNo relationshipA negative curvilinear relationshipA negative linear relationship4. The study of statistics can be defined as:the art and science of getting information from data.All of the answersthe language of data.the study of collecting, analyzing, presenting, and interpreting data.5. In the accompanying stem-and-leaf diagram the values in the stem and leaf portions represent10s and 1s digits, respectively. The stem-and-leaf diagram shows that the distribution is___________.symmetricpositively skewednegatively skewedNone of the answers6. Which of the following is most influenced by outliers?MedianMode75th percentileMean7. Serial correlation is typically observed in:sparse dataoutlierscross-sectional datatime series data8. In the sample regression equation what is ?The value of y when x = 0The predicted value of y, given a specific x valueThe slope of t

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