Question

Fall19-Math 1342-A4-CRN12899 ONLINE Test: Exam2 - Ch 3, 4, & 5 (# of Q's = 25) This Question: 1 pt 24 of 25 (23 complete) The weights of ice cream cartons are normally distributed with a mean weight of 12 ounces and a standard deviation of 0.6 ounce. (a) What is the probability that a randomly selected carton has a weight greater than 12.22 ounces? (b) A sample of 25 cartons is randomly selected. What is the probability that their mean weight is greater than 12.22 ounces? (a) The probability is (Round to four decimal places as needed.) (b) The probability is . (Round to four decimal places as needed.)

Answer 1

Solution Giveni XNNlui u=12 @ p(x212.22) - 1-PCX<12:22) FI-P ( XL 12-23-2) 1-PC250.3666) -1-0.64-30 0.3569 The probability is 10:3569 | O n=25 INNchin) PC521222) = |-|(X<12:22) l-p( xy 12.12-12

l-p(Z31-8333) = 1-0.9666 = 0.0333 PCX22:22) = 0-0333 Therefore the poobability is 0.0333]