help please in this homework
* Test Information Description Instructions Timed Test This test has a time limit of 3 hours. This test will save and submit automatically when the time expires. Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain. Multiple Attempts Not allowed. This test can only be taken once. Force Completion This test can be saved and resumed at any point until time has expired. The timer will continue to run If you leave the test. Remaining Time: 2 hours, 28 minutes, 47 seconds. * Question Completion Status: Moving to another question will save this response. > A Moving to another question will save this response. MacBook AirWill save and submit automatically when the time expires. Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain. Multiple Attempts Not allowed. This test can only be taken once. Force Completion This test can be saved and resumed at any point until time has expired. The timer will continue to run if you leave the test. ments URES Remaining Time: 2 hours, 28 minutes, 03 seconds. ssion Board E HRS,/STAFF INFO * Question Completion Status: INMENTS OOK CHAPTERS > A Moving to another question will save this response. ides Question 40 Meeting e Exams Consider the following probability mass function of a discrete random variable: X 1 2 3 4 5 P(X=x) 0.15 0.3 0.2 0.15 Tools Find P(X>4) Resources O A. 0.15 Bb Help IT Guide O B. The correct answer is not among the choices. O C. Resources 0.35 age OD. 0.55 OE. 0.3 A Moving to another question will save this response. MacBook AirThis test has a time limit of 3 hours. This test will save and submit automatically when the time expires. Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain. Multiple Attempts Not allowed. This test can only be taken once. Force Completion This test can be saved and resumed at any point until time has expired. The timer will continue to run if you leave the test. Remaining Time: 2 hours, 28 minutes, 57 seconds. * Question Completion Status: AMoving to another question will save this response. > Question 35 1 points Save Answer Of all the students applying for undergraduate studies, 13% applied to Honors college. Consider a randomly selected sample of 1500 students applying for undergraduate studies. Since we can view this as 1500 independent Bernoulli trials, this will be considered a binomial experiment. Find the probability that from the sample of 1500 students, strictly less than 160 students applied to Honors college. OA. O B. The correct answer is not among the choices. O C. .0026 O.D. .1287 OE .0033 > Moving to another question will save this response. MacBook AirDescription Instructions Timed Test This test has a time limit of 3 hours. This test will save and submit automatically when the time expires. Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain, Multiple Attempts Not allowed. This test can only be taken once. Force Completion This test can be saved and resumed at any point until time has expired. The timer will continue to run if you leave the test. Remaining Time: 2 hours, 27 minutes, 15 seconds. Question Completion Status: Moving to another question will save this response. A Moving to another question will save this response. >> Question 43 1 points Save Answer It is known that 65% of Empire plan customers order their prescriptions via mail-order at least once a year. Suppose we randomly select 6 customers. What is the probability that exactly 4 of them have ordered via mail-order in the past year? OF 0.672 O B. 0.480 OG. 0.312 O.D. "The correct answer is not among the choices. OE. 0.328 > Moving to another question will save this response. MacBook AirForce Completion This test can be saved and resumed at any point until time has expired. The timer will continue to run if you leave the test. Remaining Time: 2 hours, 39 minutes, 46 seconds. * Question Completion Status: Moving to another question will save this response. >> Question 33 1 points Save Answer Of all the students applying for undergraduate studies, 13% applied to Honors college. Consider a randomly selected sample of 1500 students applying for undergraduate studies. Since we can view this as 1500 independent Bernoulli trials, this will be considered a binomial experiment. The standard deviation of this distribution is given by: O A. 12.118 O B. 13.025 O C. The correct answer is not among the choices. O.D. 12.74 OE. 13.829 > Moving to another question will save this response. MacBook AirMultiple Attempts Not allowed. This test can only be taken once. Force Completion This test can be saved and resumed at any point until time has expired. The timer will continue to run if you leave the test. Remaining Time: 2 hours, 27 minutes, 49 seconds. ard STAFF INFO Question Completion Status: Moving to another question will save this response. LAPTERS Question 42 Consider the following probability mass function of a discrete random variable: X 1 4 P(X=x) 0.15 0.3 0.2 5 0.15 Find Var(4X-2) OA 5.2 O B. 1.69 O C. The correct answer is not among the choices. OD. 27.04 OE 3.2 A Moving to another question will save this response. MacBook AirTimed Test This test has a time limit of 3 hours.This test will save and submit automatically when the time expires. Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain. Multiple Attempts Not allowed. This test can only be taken once. Force Completion This test can be saved and resumed at any point until time has expired. The timer will continue to run if you leave the test. Remaining Time: 2 hours, 28 minutes, 22 seconds. * Question Completion Status: A Moving to another question will save this response. >> Question 38 1 points Save Answer An industrial supplier has shipped a truckload of Teflon lubricant cartridges to an aerospace customer. The customer has been assured that the mean weight of these is "in excess" of the 12 ounces printed on each cartridge. To check this claim, a sample of n = 20 cartridges are randomly selected from the shipment and carefully weighed. Summary statistics for the sample are: Sample mean = 12.11 Sample standard dev = .30 ounce To determine whether the supplier's claim is true, consider the test Ho: u = 12 vs. Ha: u >12, where u is the true mean weight of the cartridges. Calculate the p-value for this test. O A. .0505 OB. The correct answer is not among the choices. O C. .1010 OD. .05
> Moving to another question will save this response. MacBook Air1 3 hours. This test will save and submit automatically when the time expires. Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain. Multiple Attempts Not allowed. This test can only be taken once. Force Completion This test can be saved and resumed at any point until time has expired. The timer will continue to run if you leave the test. Remaining Time: 2 hours, 28 minutes, 10 seconds. Board ,/STAFF INFO * Question Completion Status: ITS CHAPTERS A Moving to another question will save this response. Question 39 ng ims Consider the following probability mass function of a discrete random variable: X 3 4 5 P(X=x) 0.15 0.3 0.2 2 0.15 Find the missing value for P(4) if the above is to be a valid Probability Mass function. ources O A. Help 0.20 Guide O B. 0.25 OC. ources 0.05 O. D. 0.30 OE. Impossible to determine A Moving to another question will save this response. MacBook AirThis test has a time limit of 3 hours. This test will save and submit automatically when the time expires. Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain. Multiple Attempts Not allowed. This test can only be taken once. Force Completion This test can be saved and resumed at any point until time has expired. The timer will continue to run if you leave the test. Remaining Time: 2 hours, 27 minutes, 56 seconds. ard STAFF INFO Question Completion Status: APTERS L.> Moving to another question will save this response. Question 41 Consider the following probability mass function of a discrete random variable: X 1 2 3 4 5 P(X=x) 0.15 0.3 0.2 0.15 Find the E(3X-2) O A. The correct answer is not among the choices. O B. 1.6 O C. S 8.5 OD. 6.7 OE. 7.0 another question will save this response.If the time, 5 minutes, 1 minute, and 30 seconds remain. Multiple Attempts Not allowed. This test can only be taken once. Force Completion This test can be saved and resumed at any point until time has expired. The timer will continue to run If you leave the test. Remaining Time: 2 hours, 28 minutes, 33 seconds. * Question Completion Status: > Moving to another question will save this response. > Question 37 1 points Save Answer An industrial supplier has shipped a truckload of Teflon lubricant cartridges to an aerospace customer. The customer has been assured that the mean weight of these is "in excess" of the 12 ounces printed on each cartridge. To check this claim, a sample of n = 20 cartridges are randomly selected from the shipment and carefully weighed. Summary statistics for the sample are: Sample mean = 12.11 Sample standard dev = .30 ounce To determine whether the supplier's claim is true, consider the test Page 11 Ho: u = 12 vs. Ha: u >12, where u is the true mean weight of the cartridges. Find the critical value for this test. (No significance level provided in problem) OA. 1.725 OB. 4.67 O C. -1.64 O.D. 1.729 OE > Moving to another question will save this response. MacBook AirRemaining Time: 2 hours, 29 minutes, 20 seconds. Question Completion Status: Moving to another question will save this response. > Question 33 1 points Save Answer Of all the students applying for undergraduate studies, 13% applied to Honors college. Consider a randomly selected sample of 1500 students applying for undergraduate studies. Since we can view this as 1500 independent Bernoulli trials, this will be considered a binomial experiment. The standard deviation of this distribution is given by: OA 12.118 O B. 13.025 OC. The correct answer is not among the choices. O.D. 12.74 OE 13.829 Moving to another question will save this response. > MacBook Air F4 F5 F6 F7 F8 F9 F12 F2 20 &* Test Information Description Instructions Timed Test This test has a time limit of 3 hours. This test will save and submit automatically when the time expires. Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain. Multiple Attempts Not allowed. This test can only be taken once. Force Completion This test can be saved and resumed at any point until time has expired. The timer will continue to run if you leave the test. Remaining Time: 2 hours, 27 minutes, 24 seconds. # Question Completion Status: > Moving to another question will save this response. Moving to another question will save this response. > Question 34 1 points Save Answer Of all the students applying for undergraduate studies, 13% applied to Honors college. Consider a randomly selected sample of 1500 students applying for undergraduate studies. Since we can view this as 1500 independent Bernoulli trials, this will be considered a binomial experiment. What is the variance of this distribution? O A. The correct answer is not among the choices. O B. O C. 169.65 O.D. 195.95 OE 146.85 >> A Moving to another question will save this response. MacBook Air