The following observations are lifetimes (days) subsequent to diagnosis for individuals suffering from blood cancer. 116-182-256-419-441-461-517-739-743 -789-808-866-925-984-1025-1062-1063 -1165-1191-1222-1222-1251-1278-1290 -1358-1369-1408-1456-1478-1519-1578 -1578-1599-1604-1606-1696-1736-1799 -1815-1852-1899-1925-1966 Calculate and interpret a confidence interval with a 99% confidence level for true average lifetime [Hint: sum x= 1192.0 and s=506.5]

a

step-by-step explanation:

jjddbdhid r

55.44 inches

step-by-step explanation:

part a. assuming a perfectly linear relationship, we can find the slope from the first two data points.

slope = m = (change in rainfall)/(change in years)

= (61.80 -62.33)/(2005 -2004) = -0.53/1 = -0.53

then the point-slope form of the equation of the line can be written as

y = m(x -h) +k . . . . . m = -0.53, (h, k) = (0, 62.33)

y = -0.53x +62.33 . . . x = years after 2004

part b. in 2017, x = 2017 -2004 = 13. then the predicted rainfall is

y = -0.53·13 +62.33 = 55.44 . . inches

the predicted rainfall in 2017 is 55.44 in.

answer: 8

step-by-step explanation: