1 The Table Below Reports The Ages In Years And The Number Of Hours Of Sleep In One Night By Seven Adults Ages 2 Hou 1 (31.17 KiB) Viewed 22 times
1. The table below reports the ages in years) and the number of hours of sleep in one night by seven adults. Ages, 2 Hours of sleep, y 35 7 20 9 59 5 42 5 68 8 38 8 75 4 η = 7, Σr = 337, Σy = 44, Σ12 = 18563, Σy? = 196, Στg = 1916 (a) Find the equation of the regression line between y and r. (b) How would you interpret the estimated slope in part (a)?
(c) Find the linear correlation coefficient between 1 and y and interpret it. d) Find the coefficient of determination and interpret it. (e) Estimate the standard deviation of the random error. (f) Construct a 95% confidence interval for the slope, and interpret it.
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