QUESTION 8A certain type of engines lasts, on average, 4.0 years with a standard deviation of 0.5 year. Assuming that the engine lifetimes are normally distributed.the probability that a given machine will last less than 3.6 years isa. 0.7881b. 0.3446C. 0.4364d. 0.2119QUESTION 9A particularly long traffic light on your morning commute is green 30% of the time that you approach it. Assume that each morning represents anindependent trial. Over 6 mornings, what is the probability that the light is not green on exactly 4 days?a. 0.001b. 0.1181C. 0.3241d. 0.0600

Name: QUESTION 8A certain type of engines lasts, on average, 4.0 years with
Uploaded: 2024-03-20T07:06:41.000Z
Channel: Bartleby
Description: QUESTION 8A certain type of engines lasts, on average, 4.0 years with a standard deviation of 0.5 year. Assuming that the engine lifetimes are normally distributed.the probability that a given machine will last less than 3.6 years isa. 0.7881b. 0.34

We have given that the average 4 years and standard deviation 0.5 years. The engine lifetime is…

Answered: A certain type of engines lasts, on…

Math

Statistics

A certain type of engines lasts, on average, 4.0 years v the probability that a given machine will last less than a. 0.7881 b. 0.3446 C. 0.4364 d. 0.2119

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Calculate the relative frequency P(E) using the given information. (Round your answer to two decimal places.) A die is rolled 90 times with the following result: 1 and 2 never come up, 3 and 4 each come up 25 times, and 5 and 6 each come up 20 times. E is the event that the number that comes up is at least 4. P(E) =
A machine operator is required to reach between the tools of a vertical hydraulic press between each cycle of the press. Under fault conditions, the operator is at risk from a crushing injury due either (a) to the press tool falling by gravity or (b) to an unplanned (powered) stroke of the press. The expected frequencies of the failures that would lead to either of these effects are given in the table below: Frequency (per year) Effect 0.2 a 0.1 0.1 0.05 Failure type Flexible hose failure Detachment of press tool Electrical fault Hydraulic valve failure (i) a b a or b Given that the operator is at risk for 20 per cent of the time that the machine is operating, construct and quantify a simple fault tree to show the expected frequency of the top event (a crushing injury to the operator's hand).
QUESTION 1 The same scenario is used for all questions. New parents in a little town buy two major brands of infant formulas, labeled A and B. After some intensive study, a marketing researcher for one of the manufacturers found that the probability of parents purchasing A or B is based on the parents' most recent purchase. Suppose that the following transition probabilities are appropriate O Probabilities of Parents Purchasing A or B From A To A To B O A B B Which of the following is the correct two period tree diagram for a customer who last purchased Brand A? O A 0.75 A 0.20 0.25 0.75 0.75 0.25 0.25 0.75 A B A B A 0.25 B 0.80 0.75 0.25 0.20 0.80 0.75 0.25 0.20 0.80 0.25 0.75 0.20 0.80 A B A B A B A B A B A B (0.25)(0.75)-0.1875 (0.25)(0.25) 0.0625 (0.75)(0.20) 0.1500 (0.75)(0.80)-0.6000 (0.75)(0.75)=0.5625 (0.75)(0.25)-0.1875 (0.25)(0.20)-0.0500 (0.25)(0.80)-0.2000 (0.25)(0.25) 0.0625 (0.25)(0.75)-0.1875 (0.75)(0.20) 0.1500 (0.75)(0.80) 0.6000
A meeting of the elders was held in a village in the early 1400's. In the meeting, the date of a future ceremony was first set, and the attendees were instructed to spread the date to their fellow villagers. In the table below, t represents the number of days that had passed since the meeting, and V represents the number of villagers that had acquired the date of the ceremony. t V 2 475 B. 4 722 Logistic y= C 1+ ae-bx 9 1748 OC. Exponential (y = a • b*) O D. Linear (y = mx + b) 16 3591 Use the data to construct a scatter plot, then complete the following. 1) Using the scatter plot and the context of the problem, which of the following best describes the pattern? O A. Quadratic (y = ax² + bx + c) 21 4370 24 4541 Approximately how many villagers were at the meeting of the elders? About 4758 villagers were at the meeting. According to the model, about 302 villagers will eventually know the date of the ceremony. 2) Using your calculator and the best of the four methods above, find the…
Question 2: Exponential distribution The distance X between two successive faults in a metallic wire is an exponential random variable with parameter A = 1.3 faults per cm (centimeter). Answer the following questions. 1. Calculate the probability of P(X<1) 2. Find the probability of P(o.9 < Xs 1.7) 3. Calculate the probability that the distance between two successive faults will be greater than 3 mm (millimeters)
Below is the life table of a population of waterbuck. What is the probability that an individual in stage 2 will survive to stage 3 (give your answer to three decimal places)? Stage 0 1 2 3 4 5 ax 50 39 25 20 11 4 Answer: 0.200 1.00 0.78 0.50 0.40 0.22 0.08 Ix dx 11 14 5 9 7 4 Probability of survival = lx+1/lx The correct answer is: 0.8 0.220 0.359 0.200 0.450 0.636 1.000 qx X
T-Mobile Wi-Fi ? I 12:12 AM •n 80% Done 11 of 12 RIE UX FIJ student.desmos.com/activitybulder/student/6062459508264d0cbd358totvscrearid-1oeb233b-4eb 401-aaa7-bE4679217 N a. . HI Apps a OnCourse Coene Clara Destiy shn 9 Empleyment Eenter Legir Sesen Espiration. 出 ☆ Logir Update! Seling Asedat = Unit 4. Lesson 11: Reducing Margin of Error Destiny Otcegbu Sien n P view Pnrtrai Prn S Nurang Tradition 3 of 10 Next > Finding a Job Elena and Clare are each working on a project about how high school students are having trouble finding jobs. Tney each find the proportion of students without jobs from a random sample, thern use a computer to do 1,000 simulations using the proportion they found and report the rasults. Elena says, "The proportion of high school students without jobs is about O.70 with a margin of error of 0.280. Clare says, "The proportion of high school students without jobs is about 0.74 with a margin of error of 0.138." Both students reported the margin of error based on 2…
Question 3 Suppose that the true (unobserved) log price p of an asset follows the model: Pt = Pt-1 + at, where {at} is sequence of iid N(0, 1) random variables. Suppose that the observed log price p, follows the model: p = Pt+et, where {e} is another sequence of iid N(0, 0.25) random variables and {e} and {a} are independent. Let r=pr-pr-1 be the observed log return. Calculate the lag-1 and lag-2 autocorrelations of r₁.
T-Mobile Wi-Fi ? 1 10:50 AM • 11% I Done 5 of 17 6 6 FJ O O T FOU FOL wwe GG|+ a i student.desmos.com/activityouilder/student/B0773c81d17eala2a455aB34Nscreenidx=7 E Apps a OnCeurse Connes Clar Desting s. 6 Emplayment. Canter a Login Session Expirstion. Emplayman. Center Sessien Expiration b Selng Aasociste -. Sign in P View Portrat Prco. 5 Nursing: Tradition = Unit 4, Lesson 7: Areas under a Normal Curve 7 of 15 Next > Dseiny Croegiou Waiting for a Waiter The wait times at a popular restaurant are approximately normally distributed. The mean wait time is 24.3 minutes with a standard deviation of 3.2 minutes. Labei your nomal distribution to 13 standard deviations from the moan. Describe the number of minutos diners have to wait if their wait times are in the longest 10% of wait times for diners at this restaurant. Describe the number of minutes diners have to wait if their wait times are in the shortest 15% of wait tirmes for diners at this restaurant. Snare with Class Stornit %23 2 3…
Question 3, section 6.1
QUESTION 3 A probability density curve is given below. 24.3% 19.7% 23.3% 18 24 34 a. Determine p( 9
High School Band - In most US high schools, students can play an instrument in three types of bands. A random sample of high school band students was taken and the results are summarized in the table below. Instrument type Band Woodwind Brass Percussion type Concert 31 25 8. Jazz 10 16 10 Marching 65 65 27 To assess whether there is a relationship between band type and instrument type, we want to conduct an appropriate hypothesis test. Choose the null and alternative hypothesis? 1. The categorical variables band type and instrument type are independent. Alternative hypothesis 2. The categorical variables band type and instrument type are not independent. Null hypothesis