Question

only do question f!!!!!! please be specific with step by step to use minitab to graphing
1. )The accompanying table gives the dry weights (Y) of 11 chick embryos ranging in age from 6 to 16 days (X). Also given in the table are the values of the common loga- rithms of the weights (Z). Age (X) (days) Dry Weight (M Logio Dry Weight (Z) 1.538-1.284 Age (X) (days) Dry Weight( 10 0.181 .03-0.742 -0.583 7 0.029 0.052 0.079 0.125 0.261 一1.102 12 13 14 15 16 0.425 0.738 1.130 1.882 2.812

Answer 1

Answer:

The estimated regression line for Y on X is Versus Fits (response is Dry Weight[]) 1.00 0.75 0.50- 0.25 0.00 0.25 0.50 0.5 Fitted Value -0.5 0.0 1.0 The residual value follows particular pattern. Thus, one can conclude that the regression line Y on X is not an appropriate regression model

The estimated regression fit line for Y on X is Versus Fits (response is Log of Dry Weights[Z]) 0.04 0.03 0.02 0.01 0.00 G0.01 -0.02 -0.03 -0.04 0.05 -0.5 0.0 0.5 Fitted Value The residual value does not follow particular pattern. Thus, one can conclude that the regression line Z on X follows normal distribution and it is an appropriate regression model

0. I 9589 ± 2.262 × 0.002676 = 0.1 9589 ± 0.006053 (0.20194,0.18984) The formula for the confidence interval for the y-intercept is Where BParameter estimates of intercept and 1 (11) s. = 0.02807-/-+ 1 (10).11 1 121 1 110 0.02807.+ -0.02807 V0.0909091.1 0.02807x 1.190909 0.02807 × 1 .091 288 S 0.030632 (2) P2.68925+-2,1 Where A, value get from the SAS output, n 2A and α 05

By substituting the value (2) for and use the t-table for (9,093) t for the P, s -2.68925+2.262x 0.030632-2.68925 0.069291 (9,0.975) then the confidence interval -(-2.62996,-2.75854)