6. Avocado Research Certain avocado varieties supposedly are resistant to fruit fly infestation before they soften as a result of ripening. The data in the table resulted from an experiment in which avocados ranging from 1 to 9 days after harvest were exposed to Mediterranean fruit flies. Penetrability of the avocados was measured on the day of exposure, and the percentage of the avocado fruit infested was recorded 

Use the MINITAB printout of the regression of percentage infected (y) on days after harvest (x) to analyze the relationship between these two variables. Explain all pertinent parts of the printout and interpret the results of any tests.

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Days after Harvest Penetrability Percentage Infected 1245699 .91 30 .81 40 .95 45. 1.04 57 1.22 60 1.38 75 1.77 100