Question

1:41 Reader View Available You can retry this question below In 1998, as an advertising campaign, the Nabisco Company announced a "1000 Chips Challenge." claiming that every 18-ounce bag of their Chips Ahoy cookies contained at least 1000 chocolate chips. Dedicated statistics students at the Air Force Academy (no kidding) purchased some randomly selected bags of cookies and counted the chocolate chips. Some of their data are given below. 1219 1214 1087 1200 1419 1121 1325 1345 1244 1258 1356 1132 1191 1270 1295 1135 Find a 95% confidence interval for the mean number of chips in a bag of Chips Ahoy Cookies. Based on this confidence interval, is the Nabisco Company justified in making this claim? no yes Submit Question

Answer 1

solution 7 Mean 5x 1981) 12.98. 18:15 TG slandard deurcutian (1-3² S- (C1219-1238, 18:16) 4.- + (1135-1238.1895) 16-1 S 438336, 4875 15 Sa 8889.095833 = 94.28200 -0.05 Too farled tertical value = 21131 - confidence interval:- Xata/2 s/n 1238.1875 1 (2:13) C qur282 v16 1238.1875 + 15012287, (1238-1825 - 5012287, 123811875 + 50.2287 (1187.9588, 12-88.4162) (Rounded to u decimal places) Yes, because 1000 downt interval so we can conclude claim belong to confidence