Question

Find the mean and standard deviation of the times and icicle lengths for the data on run 8903 in data data322.dat. Find the correlation between the two variables. Use these five numbers to find the equation of the regression line for predicting length from time. Use the same five numbers to find the equation of the regression line for predicting the time an icicle has been growing from its length. Round your answers to three decimal places

time    length
10      .6
20      1.6
30      3.5
40      5.4
50      6.8
60      11
70      12.7
80      12.1
90      15
100     15.9
110     20.3
120     16.9
130     21.3
140     22.5
150     24.8
160     24.7
170     29.3
180     31.7

times x =
times s =
lengths x =
lengths s =
r =
time =	+ length
length =	+ time

Answer 1