Question 6 of 6 (1 point) Question Attempt: 1 of Unlimited (b) If a random sample of 48 adult men ride the elevator, what is the probability that the maximum safe weight will be exceeded? Round the answer to at least four decimal places. The probability that the maximum safe weight will be exceeded is D . E (c) If a random sample of 48 adult women ride the elevator, what is the probability that the maximum safe weight will be exceeded? Round the answer to at least four decimal places. The probability that the maximum safe weight will be exceeded is D. E Homework Chapter 6.2 Question 4 of 6 (1 point) i Question Attempt: 1 of Unlimited SAT scores: Assume that in a given year the mean mathematics SAT score was 467, and the standard deviation was 105. A sample of 59 scores is chosen. Use the TI-84 Plus calculator. (a) What is the probability that the sample mean score is less than 455? Round the answer to at least four decimal places. The probability that the sample mean score is less than 455 is E]. (b) What is the probability that the sample mean score is between 430 and 470? Round the answer to at least four decimal places. The probability that the sample mean score is between 430 and 470 is E]. (c) Find the 45th percentile of the sample mean. Round the answer to at least two decimal places. The 45th percentile of the sample mean is E]. (d) Would it be unusual if the the sample mean were greater than 499? Round answer to at least four decimal places. It (choose one) v be unusual if the the sample mean were greater than 499, since the probability is E]. E (e) Do you think it would be unusual for an individual to get a score greater than 499? Explain. Assume the variable is normally distributed. Round the answer to at least four decimal places. @698 E Kl Question 4 of 6 (1 point) Question Attempt: 1 of Unlimited (d) Would it be unusual if the the sample mean were greater than 499? Round answer to at least four decimal places. It '(Choose one) v ' be unusual if the the sample mean were greater than 499, since the probability is E]. (e) Do you think it would be unusual for an individual to get a score greater than 499? Explain. Assume the variable is normally distributed. Round the answer to at least four decimal places. , because the probability that an individual gets a score greater than 499 is D . |(Choose one) V High-rent district: The mean monthly rent for a one-bedroom apartment without a doorman in Manhattan is $2663. Assume the standard deviation is $506. A real estate rm samples 106 apartments. Use the TI-34 Plus calculator. (a) What is the probability that the sample mean rent is greater than $2733? Round the answer to at least four decimal places. The probability that the sample mean rent is greater than $2733 is E]. E] (b) what is the probability that the sample mean rent is between $2500 and $2575? Round the answer to at least four decimal places. The probability that the sample mean rent is between $2500 and $2575 is D. E (c) Find the 90" percentile of the sample mean. Round the answer to at least two decimal places. The 90"percentile of the sample mean rent is $ X Part 4 of 5 (d) Would it be unusual if the sample mean were greater than $2690? Round answer to at least four decimal places. (Choose one) V , because the probability that the sample mean is greater than $2690 is X 5 Part 5 of 5 (e) Do you think it would be unusual for an individual to have a rent greater than $2690? Explain. Assume the variable is normally distributed. Round the answer to at least four decimal places.Elevator ride: Engineers are designing a large elevator that will accommodate 48 people. The maximum weight the elevator can hold safely is 9504 pounds. According to the National Health Statistics Reports, the weights of adult U.S. men have mean 188 pounds and standard deviation 63 pounds, and the weights of adult U.S. women have mean 169 pounds and standard deviation '76 pounds. Use the TI-84 Plus calculator. (a) If 48 people are on the elevator, and their total weight is 9504 pounds, what is their average weight? The average weight is D pounds. (b) If a random sample of 48 adult men ride the elevator, what is the probability that the maximum safe weight will be exceeded? Round the answer to at least four decimal places. The probability that the maximum safe weight will be exceeded is m. ' @234\" A Below, 71 is the sample size,p is the population proportion and p is the sample proportion. Use the Central Limit Theorem and the TI-84 calculator to find the probability. Round the answer to at least four decimal places. n:lll p : 0.54 P(3>0.60):[j x 6) . Question 2 of 6 (1 point) | Question Attempt: 1 of Unlimited A sample of size 19 will be drawn from a population with mean 107 and standard deviation 39. (a) Is it appropriate to use the normal distribution to find probabilities for x? (b) If appropriate find the probability that x will be less than 89. (c) If appropriate find the 95th percentile of x. O It is appropriate to use the normal distribution to find probabilities for x. X 5 The probability that x will be less than 89 is The 95 percentile of x is O It is not appropriate to use the normal distribution to find probabilities for x.Watch your cholesterol: The mean serum cholesterol level for U.S. adults was 203, with a standard deviation of 42 (the units are milligrams per deciliter). A simple random sample of 109 adults is chosen. Use the TI-84 calculator. Round the answers to four decimal places. What is the probability that the sample mean cholesterol level is greater than 213? The probability that the sample mean cholesterol level is greater than 213 is D. E What is the probability that the sample mean cholesterol level is between 191 and 201? The probability that the sample mean cholesterol level is between 191 and 201 is D. What is the probability that the sample mean cholesterol level is between 191 and 201? The probability that the sample mean cholesterol level is between 191 and 201 is C]. Would it be unusual for the sample mean to be less than 191? It be unusual for the sample mean to be less than 191, since the probability is [:1