13. In a random sample of 200 mobile phone customers, 15 were observed to be P-Hurry subscribers. What is a 95% confidence interval for P-Hurry's market share? A. [0.0444; 0.1056] B. [0.0385; 0.1115] C. [0.0512; 0.0988] D. None of the above 14. Suppose we have data regarding 30 randomly selected retail real estate parcels. Each has been measured regarding its footprint (m2) and its lease price ($). Each has also been categorized as regards its proximity to the freeway - "Adjacent to", "No farther than 1 mile", and "Farther than 1 mile". If we decided to incorporate all this information into a regression model to predict lease price, how many regression predictors (not including the intercept) would we need? A. 1 B. 2 C. 3 D. 4 U11. In a simple linear regression analysis, we have observed the following: SSTotal : 3125 SSError : 1760 On a percentage basis, approximately how much variation in our dependent variable can we account for with our regression model A. 37% B. 44% C. 63% D. 72% E. 77% 8. It has been observed that when an observation is above average with regard to variable J, that observation will also be highly likely to be above average with regard to variable K. Into which of the following ranges would the best estimate for the correlation between J and K fall? A 0