A manufacturer of flea colars for animals injects the collars with 15 grams of a medicine that only acts on fleas. The manufacturer only sell coars with 14 m. grams and no more than 16 m. grams of medicine. The following list shows the result of sampling 35 collars from an actual
product on run of 720 cars
17. 14. 14. 16. 14. 15. 15. 15, 16, 14, 16, 14, 15, 15, 15, 16, 13, 13
13. 13. 13, 14, 14, 13, 1714, 15, 13, 14, 15, 16, 17, 14, 17, 14, 15
A Based on this sample what percent of the coars would be acceptable? Explain how you got your answer
B) Based on the sample, how many coars would you expect the manufacturer to reject?

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average