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categoryإحصاء schoolبكالوريوس event_available2026-07-15

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7.3.11 Question Help In an advertising campaign, a snack company claimed that every 18-ounce bag of its cookies contained at least 1000 chocolate chips. Two statisticians attempted to verify the claim. The accompanying data represent the number of chips in an 18-ounce bag of the company's cookies based on their study. Complete parts (a) through (e). Click here to view the chocolate chip data table. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). Observed value Observed value Observed value Observed value E 1000 1400 1800 2200 900 1200 1500 1800 600 1000 1400 1800 900 1200 1500 1800 (d) Using the normal model from part (c), find the probability that an 18-ounce bag of chips selected at random contains at least 1000 chips. The probability is 0.993. (Round to three decimal places as needed.) (e) Using the normal model from part (c), find the probability that an 18-ounce bag of chips selected at random contains between 1200 and 1300 chips. The probability is ☐ (Round to three decimal places as needed.) Enter your answer in the answer box and then click Check Answer. ? i Chocolate Chip Data Table - X 1089 1153 1217 1271 1349 1098 1167 1217 1272 1358 1106 1188 1218 1275 1363 1118 1189 1223 1289 1373 1131 1202 1244 1289 1397 1131 1205 1246 1292 1418 1138 1210 1248 1309 1441 1148 1217 1254 1328 1517 Print Done

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