Eleven altitudes (in thousands of feet) and the speeds of sound (in feet per second) at these altitudes.

(a) Display the data in a scatter plot, 

(b) Calculate the sample correlation coefficient r, 

(c) Describe the type of correlation, if any, and interpret the correlation in the context of the data, and 

(d) Use Table 11 in Appendix B to make a conclusion about the correlation coefficient. If convenient, use technology. Let a = 0.01.

Transcribed Image Text:

Altitude, x 5 10 25 15 20 1116.3 1096.9 Speed of sound, y 1077.3 1057.2 1036.8 1015.8 Altitude, x 30 35 40 45 50 994.5 Speed of sound, y 967.7 967.7 969.0 967.7