Pandora, the owner of a food delivery app, knows from experience that the time needed toassemble a food delivery is normally distributed with a mean of 30 minutes and standarddeviation of 5 minutes.<3.c. Below how many minutes would you find the fastest 10% of food assembly times? (i.e., find ksuch that P(food assembly time

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Answered: Pandora, the owner of a food delivery…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Similar questions

Find the probability that more than 68% of the sampled adults drink coffee daily.
Solve the following Make in-house or outsource decision model using Monte Carlo Simulation of Data Table. The production level has to be set equal to demand. Demand is assumed to follow a normal distribution of mean = 1200 and a standard deviation of 175. Make 1000 trials to simulate demand to find out the approximate probability to meet the demand through outsourcing,DataManufactured in-houseFixed cost$50,000Unit variable cost$135 Purchased from supplierUnit cost$180 Production volume Model Total manufacturing costTotal purchased cost Cost differenceDecision (Production/ Outsourcing)
Empirical research on stock market data for two consecutive trading days indicates that 60% of the stocks that went up on the first day also went up on the second day. Yesterday, 600 stocks went up. Answer the following. (If necessary, consult a list of formulas.) (a) Find the mean of p, where p gives the proportion of the 600 stocks that went up yesterday that will go up today. (b) Find the standard deviation of p. (c) Compute an approximation for P(p <0.58), which is the probability that fewer than 58% of the stocks that went up yesterday will go up again today. Round your answer to four decimal places.
Referring to Table 2, the mean square for the factor filling time is____ 1). 0.9030 2). 0.4234 3). 0.4515 4). 0.2117
A car battery's lifetime has an unknown distribution that is symmetric around its average of 800 days. The standard deviation of the lifetime is 50 days. Use Chebyshev's theorem to find an upper bound for the percentage of batteries that last shorter than 550 days? A. 5.56% B. 2.00% O C. 1.39% O D. 3.13%
Suppose the scores of students on an exam are normally distributed with a mean of 444 and a standard deviation of 65. Then approximately 68% of the exam scores lie between the integers _____ and ____ such that the mean is halfway between these two integers.
Among freshmen at a certain university, scores on the Math SAT followed the normal curve, with an average of 550 and an SD of 100. Fill in the blank. A student who scored 430 on the Math SAT was at the ____th percentile of the score distribution. Answer the problem by entering a value between 0 and 100 without % to fill in the blank. Any correctly rounded answer will receive full credit.
Answer d.
Suppose that delivery cars arrive randomly at a restaurant with an exponentially distributed inter-arrival times with a mean of 0.1 hours. It is given that it takes a restaurant employee 4 minutes - on average to prepare the order with a standard deviation of 2 minutes Spe that delivery drivers are paid $10 per hour. Calculate the average cost per hour of driverS waiting for their orders to be prepared. Select one: O A. 8.33 O B. 8.25 O C. 12.50 O D. None O E. 8 Next page

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