Reference no: EM13805212
1- Given the following paritalminitab printout of the number of police officers present in a particular area of a city and the number of crimes committed during that time, answer the following questions:
Correlations: No. of Police Officers, No. of Crimes
Pearson correlation of No. of Police Officers and No. of Crimes = -0.912
Regression Analysis: No. of crimes versus No. of Police Officers
The regression equation is
No. of Crimes = 22.2 - 1.54 No. of Police Officers
What is the correlation value "r"?
If 8 police officers are present, predict the number of crimes that would occur. (round the nearest crime)
Based on your correlation coefficient, how good (valid) is your prediction, poor, okay, good, very good?
For each additional police officer, what would you predict the increase or decrease in the number of crimes be? (use + for increase and - for decrease and give the value round to 3 decimal places)
2-Which of the following best describes the data: classifications of unlikely, likely, or very likely to describe possible buying of a product?
A) Qualitative data
B) Numerical data
C) Sample data
D) Quantitative data
3- Which of the following would not be a continuous random variable?
A) Age of students upon graduation from college
B) Number of attempts to make a field goal in football
C) Number of miles driven on a trip
D) Body temperature of small children
4- Which of the following best describes the data: zip codes for students attending college in the state of Michigan?
A) Numerical data
B) Sample data
C) Quantitative data
D) Attribute data
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