Ahigh school statistics class wants to estimate the average number of chocolate chips in a generic brand of chocolate chip cookies. they collect a random sample of cookies, count the chips in each cookie, and calculate a 95% confidence interval for the average number of chips per cookie (18.6 to 21.3). the next four items present four different interpretations of these results. indicate if each interpretation is valid or invalid. interpretation 1: we are 95% certain that each cookie for this brand has approximately 18.6 to 21.3 chocolate chips.