1. The table below reports the ages (in years) and the number of hours of sleep in one night by seven adults. Age, x Hou

[answerhappygod]

1 The Table Below Reports The Ages In Years And The Number Of Hours Of Sleep In One Night By Seven Adults Age X Hou 1 (100.07 KiB) Viewed 31 times

1. The table below reports the ages (in years) and the number of hours of sleep in one night by seven adults. Age, x Hours of sleep, y 35 7 20 9 59 5 42 6 68 5 38 8 75 4 n=7, Σx = 337, Σx2 = 18563, Σy = 44, Σy = 296, = Σry Σxy = 1916. (a). (2 pts.) Calculate the sample correlation coefficient r between age, x, and the number of hours slept in one night, y. (b). (5 pts.) Test for significant linear correlation between age of an adult and the number of hours slept in one night by an adult at a = .05 (c). (5 pts.) Find the equation of the best fit line relating the number of hours slept by an adult, y to the adult's age, x.