101 Sweetness of orange juice. Refer to the simple linear regression of sweetness index y and amount of pectin, x , for n = 24 orange juice samples, presented in Exercise 28 .

The SPSS printout of the analysis is shown at the top . A 90% confidence interval for the mean sweetness index E ( y ) for each value of x is shown on the SPSS spreadsheet on the next page. Select an observation and interpret this interval.

Transcribed Image Text:

Simple Linear Regression run sweet pectin lower90m upper90m 1 2 3 4 6 7 8 9 10 10 11 11 12 12 123456780012 5.2 220 5.64898 5.83848 5.5 227 5.63898 5.81613 6.0 259 5.57819 5.72904 5.9 210 5.66194 5.87173 5.8 224 5.64337 5.82560 6.0 215 5.65564 5.85493 5.8 231 5.63284 5.80379 5.6 268 5.55553 5.71011 9 5.6 239 5.61947 5.78019 5.9 212 5.65946 5.86497 5.4 410 5.05526 5.55416 5.6 256 5.58517 5.73592 13 13 5.8 306 5.43785 5.65219 14 14 5.5 259 5.57819 5.72904 15 15 5.3 284 5.50957 5.68213 16 16 17 17 18 18 19 19 20 20 21 21 22 23 SPSS output for Exercise 101 24 222 555555555 5.3 5.7 37 383 5.15725 5.57694 271 5.54743 5.70434 5.5 264 5.56591 5.71821 5.7 227 5.63898 5.81613 5.3 263 5.56843 5.72031 5.9 232 5.63125 5.80075 5.8 220 5.64898 5.83848 5.8 246 5.60640 5.76091 5.9 241 5.61587 5.77454