In a study to determine the relationship between ambient outdoor temperature and the rate of evaporation of water from soil, measurements of average daytime temperature in —¦C and evaporation in mm/day were taken for 40 days. The results are shown in the following table.

a. Compute the least-squares line for predicting evaporation (y) from temperature (x).
b. Compute 95% confidence intervals for β0 and β1.
c. Predict the evaporation rate when the temperature is 20—¦C.
d. Find a 95% confidence interval for the mean evaporation rate for all days with a temperature of 20—¦C.
e. Find a 95% prediction interval for the evaporation rate on a given day with a temperature of 20—¦C.

Transcribed Image Text:

1510778881 V-13 5 2 5 4 5575 0647738385 3 ap 558821394 3 3544353473 6414648327 8525245 e-11 2 2 2 2 2 1221 806042 .4 272 352854425- ip 8288822132 1456464405 e-12 1 2 2 2 1131 4401098016 V-24 5 4 6 5 4371 nip- 8556160921 1163911849 e-11 2 1 2 1 2 3 1 2-1