5:52 Done myopenmath.com AA C Lab 12 Normal Distribution II Score: 0/12 0/12 answered Progress saved Done . . . . Question 5 0/1 pt 9 3 3 0 Details The lifespan of refrigerators is normally distributed with mean 15 years and standard deviation 2.1 years. If 18 refrigerators are randomly selected, there is a 80% probability that the mean lifespan of the selected refrigerators is between what two values? If there are two answers, list both answers separated by a comma. Submit Question E 0/1 pt '0 3 B 3 G) Details The mean income for people in a certain city (in thousands of dollars) is 38 with standard deviation 70 (thousands of dollars). A pollster draws a sample of 40 people to interview. What is the probability that the mean income of the sampled people is more than 23 (thousands of dollars)? If there are two answers, list both answers separated by a comma. Submit Question Done 9 myopenmath.com AA Lab 12 Normal Distribution || Score: 0112 0/12 answered Progress saved. Done IE! W' 5 0 Question 3 v E 0/1 pt '0 3 3 3 G) Details The birth weights of full-term babies have mean 7.41 pounds and standard deviation 1.6 pounds. Find the birth weight that separates the heaviest 12% of babies. if there are two answers, list both answers separated by a comma. Submit Question Done 9 myopenmath.com AA Lab 12 Normal Distribution || Score: 0/12 0/12 answered Progresssaved Done IE! \\l' E 0 Question 1 v |3 on pt '0 3 3 3 (9 Details The reading speed of sixth-grade students is approximately normal, with a mean speed of 122 words per minute and a standard deviation of 27 words per minute. What is the reading speed of a sixth-grader whose reading speed is at the 94th percentile? If there are two answers, list both answers separated by a comma. S Submit Question Done 9 myopenmath.com AA Lab 12 Normal Distribution ll Score: 0/12 0/12 answered Progress saved: Done & {5' 5 0 Question 4 v 80/1 pt '03 8 3 G) Details Scores on the ACT college entrance exam are normally distributed with a mean of 21 .7 and a standard deviation of 5.9. What percent of scores are between 13 and 26? If there are two answers, list both answers separated by a comma. [: Submit Question Done 9 myopenmath.com AA Lab 12 Normal Distribution ll Score: 0f12 0/12 answered Progress saved Done EB! 15' 0 Question 6 v EON pt '03 3 3 @Details According to the American Time Use Survey, the mean number of hours that adult Americans watch TV on a weekday is 2.35 hours with a standard deviation of 1.76 hours. If a random sample of 28 adult Americans is selected, what is the probability that their mean number of hours watching TV on a weekday is less than 3 hours. If there are two answers, list both answers separated by a comma. E Submit