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Question 10 [1 paint) A consumer group tested a random sample of 34 light bulbs and found that they had a mean life of 932 hours. Find the V confidence interval malimain of the trum mean life of that type of light bulb if previous studies showed that -42 and the data values are normaly distributed, . 302-4 542 (05004 544 Question 11 [1 paint) A consumer popup tested a random sample of 34 light bulbs and found that they had a mean life of 932 hours Find the UU confidence interval malimade of the trum mean life of that type of light bulb if previous studies showed that or-42 and the data values are normaly distributed, . Question 12 [1 paint) A random sample of 1b apples had a mean weight of 2.2 ounces. Assuming the thata values are normally distributed, find the Uhis confidence interval climate of the mean weight of that type of apple if = = 4./ ounces. 40-H 124 $ 4"H4 120 saw 11.8 Question 13 [1 paint) The fired exam scores of a college algebra class with 29 studenta resulted in a mean of B1 3 and a starland deviation of BY. Assuming the data value are normally distributed, find the 90% confidence interval sstirrate of the truc mean score of the college algebra final Question 14 [1 paint) The English placement test scores for a group of 20 students resulted in a mean of 120.0 and a standard deviation of 1814. Assuming the data values are normally distributed, find the )4% confidence interval sstirrate of the truc mean score of the English placement test. 1104 1298 10.67-1304 1082--1318 Question 15 [1 paint) The fired seam scores of a college algebra class with 29 students resulted in a mean of B1 3 and a standard deviation of BY. Assuming the data value are normally distributed, find the 90:% confidence interval estirrate of the true mean score of the college algebra final 784 4 842 Question 18 [1 paint) The English placement test scores for a group of 20 students resulted in a mean of 120.0 and a standard deviation of 184. Assuming the data values are normally distributed, find the 90: confidence interval estimate of the truc mean score of the English placement test. 1 1294 1271 1132-p-124.8 1145 -1235