An economist want to determine the relation between one's FICO score, x, and the interest rate of a 36-month auto loan, y. The given data represent the interest rate (in percent) a bank would offer on a 36-month auto load for various FICO scores. Credit Interest Rate Score;x (percent);y 545 18.982 595 17.967 12.218 8.612 705 6.68 750 5.15 1. Find the least-squares regression line treating the FICO score as the explanatory variable and the interest rate as the response variable. 2. Predict the interest rate a person would pay if their FICO score were the median score of 723. 640 675

Determine the percent of data greater than z=−1.40.    The percent of data greater than z=−1.40 is what ​%. ​(Type an integer or decimal rounded to two decimal places as​ needed.)

The data in the accompanying table represent the total rates of return (in percentages) for three stock exchanges over the four-year period from 2009 to 2012. Calculate the geometric mean rate of return for each of the three stock exchanges. Click the icon to view data table for total rate of return for stock market indices. Click the icon to view data table for total rate of return for platinum, gold, and silver. a. Compute the geometric mean rate of return per year for the stock indices from 2009 through 2012. For stock exchange A, the geometric mean rate of return for the four-year period 2009-2012 was %. (Type an integer or decimal rounded to two decimal places as needed.) Data table for total rate of return Year A B C 2012 6.52 13.15 15.93 2011 4.79 0.00 -2.47 2010 10.00 11.85 16.38 2009 18.63 23.62 43.12 Print Done - X C Geometric mean rate of return for stock market indices Metal Platinum Gold Silver Geometric mean rate of return D 13.54% 15.78% 20.52% Print Done X

q9

Yes, because 0.089 = (0.3)(0.158)  No, because 0.089 ≠ (0.3)(0.158)  Yes, because 0.047 = (0.3)(0.158)  No, because 0.047 ≠ (0.3)(0.158)

Suppose that the correlation between height and IQ in children is +0.70. What proportion (or percent) of the variability in IQ can be explained by the relationship with height?​ Select one: a. 44% b. 51% c. 70% d. 49%

ABC company has recently experienced a sharp decline in its stock price. Its current (time 0) stock price is $42.65, and this morning, it paid $5.00 per share. Given that the stock price four years ago was $82.88, complete the following time series of data by determining the missing values. t= -3, Pt =$83.43, Divt = $16.03, Rt = (1)t= -2, Pt =$85.20, Divt =(2),           Rt = 22.8482%t= -1, Pt =(3),          Divt =$17.50, Rt = 20.6572%t= 0, Pt =$42.65, Divt =$5.00,     Rt =(4)

The following box plot shows the U.S. population for 1990, the latest available year. + 33 17 50 =105 ure 2.42 a. Are there fewer or more children (age 17 and under) than senior citizens (age 65 and over)? How do you know? b. 12.6% are age 65 and over. Approximately what percentage of the population are working age adults (above age 17 to age 65)?

The graph below is an ogive of scores on a math test. The vertical axis in an ogive is the cumulative relative frequency and can also be interpreted as a percentile. Use the graph to approximate the test score that corresponds to the 30th percentile. O A. 9 ОВ. 4 Percentile Ranks of Math Test Scores ОС. 56 100- 90- O D. 50 80- 70- 60- 50- 40- 30- 20- 10- 0- -> O 10 20 30 40 50 60 70 80 90 100 Test Socore (96) Click to select your answer. Percentile

Rail ridership during the summer months in the North-East is believed to beclosely related to the number of tourists visiting the region. The following tableshows the data on the number of tourists and North-East ridership for the past16 years. (Answer in Excel showing formulas for answers)Year      Tourists( in millions)     Rail Ridership (in millions) 2000              9                                         2.32001              4                                         1.9 2002              7                                         1.7 2003              5                                         1.8 2004              12                                       2.8 2005              13                                       2.9 2006              14                                       2.42007              20                                       4.8 2008              7                                        1.3 2009              5                                         1.12010…