12) The selling prices of mutual funds change daily. To study these changes, a sample of mutual funds was examined and the daily changes in price are listed below. 0.05 0.00 - 0.03 - 0.01 0.18 0.00 0.02 0.29 0.00 - 0.07 0.10 0.07 0.03 Determine the lower and upper fences. Are there any outliers according to this criterion? 13) The numbers of homeruns that Mark McGwire hit in the first 13 years of his major league baseball career are listed below. (Source: Major League Handbook) Construct a scatter diagram for the data. Is there a relationship between the home runs and the batting averages? Homeruns 33 39 22 42 9 9 39 52 58 70 Batting Average . 231 235 201 .268 33 .252 .274 .312 .274 .299 14) The data below are the final exam scores of 10 randomly selected calculus students and the number of hours they slept the night before the exam. Calculate the linear correlation coefficient and determine whether a linear relation exists. Hours, x 4 6 3 9 3 5 5 6 7 4 Scores, y 74 89 69 97 75 87 94 99 99 80 15) The data below are the final exam scores of 10 randomly selected chemistry students and the number of hours they slept the night before the exam. Find the equation of the regression line for the given data. What is the best predicted value for y given x = 6? Hours, x 3 5 2 8 2 4 4 5 6 3 Scores, y 65 80 60 88 66 78 85 90 90 71