The following set of jobs must be processed serially through a two-step system. The times at each process are in hours. If Johnson's Rule is used to sequence the jobs then Job C would complete processing on operation 2 at Job Process 1 Process 2 A B C D E A. hour 15. B. hour 26. C. hour 32. D. hour 35. E. none of the above. 9 5 4 7 2 6 8 3 11 5
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- A certain sample of E. Coli has 2.5 times the population every hour. If the sample began with 50 cells, which of the following is closest to the population of the sample after 4 hours?A research center claims that at least 23% of adults in a certain country think that their taxes will be audited. In a random sample of 1000 adults in that country in a recent year, 19% say they are concerned that their taxes will be audited. At α=0.05, is there enough evidence to reject the center's claim? Complete parts (a) through (e) below. (a) Identify the claim and state H0 and Ha.waiting time at the drive-through of a fast-food restaurant from the time an order is placed to the time the order is received is 83.8 seconds. A manager devises a new drive-through system that he believes will decrease wait time. As a test, he initiates the new system at his restaurant and measures the wait time for 10 randomly selected orders. The wait times are provided in the table to the right. Complete parts (a) and (b) below.
- Sampling 4 pieces of precision-cut wire (to be used in computer assembly) every hour for the past 24 hours has produced the following results: Hour x R Hour x R Hour x R Hour x R 1 3.25" 0.71" 7 3.15" 0.58" 13 3.11" 0.90" 19 3.31" 1.61" 2 3.20 1.18 8 2.55 1.13 14 2.83 1.31 20 2.99 1.14 3 3.32 1.38 9 3.12 0.76 15 3.22 1.06 21 2.55 1.13 4 3.29 1.21 10 2.85 1.38 16 2.94 0.45 22 3.38 0.51 5 2.97 1.22 11 2.83 1.22 17 2.86 1.48 23 3.04 1.58 6 2.96 0.37 12 2.87 0.35 18 2.84 1.24 24 2.74 0.97 Based on the sampling done, the control limits for 3-sigma x chart are (round all intermediate calculations to three decimal places before proceeding with further calculations): Part 2 Upper Control Limit (UCLx) = ? inches (round…Sampling 4 pieces of precision-cut wire (to be used in computer assembly) every hour for the past 24 hours has produced the following results: Hour x R Hour x R Hour x R Hour x R 1 3.25" 0.71" 7 2.95" 0.58" 13 3.21" 0.80" 19 3.41" 1.56" 2 3.20 1.18 8 2.75 1.13 14 2.83 1.26 20 2.89 1.04 3 3.22 1.38 9 3.12 0.71 15 3.12 1.01 21 2.75 1.13 4 3.29 1.31 10 2.85 1.38 16 2.84 0.45 22 3.28 0.51 5 3.17 1.12 11 2.83 1.17 17 2.86 1.48 23 2.94 1.63 6 2.76 0.32 12 3.07 0.45 18 2.84 1.24 24 2.74 0.92 Based on the sampling done, the control limits for 3-sigma x chart are (round all intermediate calculations to three decimal places…Sampling 4 pieces of precision-cut wire (to be used in computer assembly) every hour for the past 24 hours has produced the following results: Hour x R Hour x R Hour x R Hour x R 1 3.25" 0.76" 7 3.05" 0.48" 13 3.21" 0.85" 19 3.31" 1.56" 2 3.20 1.23 8 2.65 1.08 14 2.83 1.36 20 2.99 1.09 3 3.12 1.48 9 3.02 0.66 15 3.22 1.01 21 2.75 1.08 4 3.39 1.31 10 2.85 1.28 16 2.74 0.45 22 3.18 0.46 5 3.07 1.22 11 2.73 1.17 17 2.96 1.48 23 2.84 1.53 6 2.96 0.37 12 2.87 0.45 18 2.64 1.34 24 2.74 0.92 Based on the sampling done, the control limits for 3-sigma x chart are (round all intermediate calculations to three decimal places…
- Suppose a company charges a premium of $150 per year for an insurance policy for storm damage to roofs. Actuarial studies show that in case of a storm, the insurance company will pay out an average of $8000 for damage to a composition shingle roof and an average of $12,000 for damage to a shake roof. They also determine that out of every 10,000 policies, there are 7 claims per year made on composition shingle roofs and 11 claims per year made on shake roofs. What is the company’s expected value (i.e., expected profit) per year of a storm insurance policy? What annual profit can the company expect if it issues 1000 such policies? Determine the probability of a composition shingle roof claim out of 10,000 = ______ Determine the probability of a shake roof claim out of 10,000 = ______ How many claims are made out of 10,000? = _______ What is the probability of no claims out of 10,000? = _______ How much does each shingle roof claim cost the company, don’t forget each person pays $150…Which of the following are proper ways of computing population at time n= 47? Check all that apply. image is provided for the questionThe Kleenglass Corporation makes a dishwasherthat has excellent cleaning power. This dishwasheruses less water than most competitors, and it isextremely quiet. Orders have been received fromseveral retail stores for delivery at the end of each ofthe next 3 months, as shown below: MONTH NUMBER OFUNITSJune 195July 215August 205 Due to limited capacity, only 200 of these dish-washers can be made each month on regular time, and the cost is $300 each. However, an extra 15 unitsper month can be produced if overtime is used, butthe cost goes up to $325 each. Also, if there are anydishwashers produced in a month that are not soldin that month, there is a $20 cost to carry this item to the next month. Use linear programming to deter-mine how many units to produce in each month on regular time and on overtime to minimize the totalcost while meeting the demand.
- An insurance company offers its policyholders a number of different premium payment options. For a randomly selected policyholder, let X = the number of months between successive payments. The cdf of X is as follows: REFER IMAGE a. What is the pmf of X?b. Using just the cdf, compute P(3 ≤ x ≤ 6) and P(4 ≤ X)The table below contains the total cost ($) for four tickets to a basketball game purchased on the secondary market, two beers, two soft drinks, two hot dogs, and one parking space at each arena during a recent season. 298.97364.59427.79213.23307.54531.23297.49302.56521.19291.69366.83532.67230.38320.12507.88212.87452.34656.21245.26436.92709.57220.91485.82727.63365.07487.58788.14360.31467.92886.93 a. Organize these costs as an ordered array. b. Construct a frequency distribution and a percentage distribution for these costs. c. Around what values, if any, are at least 75% of the costs of attending the game concentrated? Explain.Consider the LCG, find the period of the generator for a = 11, c = 15, m = 64, and Xo = 3. a. Generate random numbers and find its period b. Test the numbers for uniformity with=0.05 using Kolmogorov-Smirnov test.
