The accompanying table shows eleven altitudes (in thousands of feet) and the speeds of sound (in feet per second) at these altitudes. Complete parts (a) through (d) below. Click here to view the data table. Click here to view the table of critical values for the Pearson correlation coefficient. (a) Display the data in a scatter plot. Choose the correct graph below. OA. OB. 1140 940+ -5 55 Altitude (1000's ft) Q G (b) Calculate the sample correlation coefficient r. There is 8 linear correlation. A 55- -5+ 940 1140 Altitude (1000's ft) Interpret the correlation. Choose the correct answer below. Q r= (Round to three decimal places as needed.) (c) Describe the type of correlation, if any, and interpret the correlation in the context of the data. Q G O C. 55- 940 1140 Altitude (1000's ft) O A. Based on the correlation, there does not appear to be any relationship between altitude and speed of sound. OB. As altitude increases, speeds of sound tend to increase. OC. Higher altitudes cause decreases in speeds of sound. O D. Based on the correlation, there does not appear to be a linear relationship between altitude and speed of sound. OE. As altitude increases. speeds of sound tend to decrease. Q Q O D. 1140 940+ -5 55 Altitude (1000's ft) Q G

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