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Q1) Engineering firm bids on contracts for short-term jobs where each job can make profit of $100,000 for firm. Assume the probabilities of getting zero to five such jobs in certain month are given in the table below:
Number of jobs
Probability
0
0.05
1
0.15
2
0.20
3
0.25
4
5
a) Determine the expected profit during month for a firm.
b) Determine the variance of firm's profit for the month.
The 95% confidence interval for the mean of the sampling distribution of the mean is about:
The mean of a sample is 22.5. The mean of 1000 bootstrapped samples is 22.491. The bias of the bootstrap mean is
What proportion of time will it take clean-up crew 56 or more hours for cleaning plant? Define the lower and upper limits of interval.
The manager of Sandy Corporation wants to determine whether or not the type of work schedule for her employees has any effect on their productivity. She has selected 15 production employees at random and then randomly assigned 5 employees to each ..
The firm examined 35 randomly chosen fax transmissions during the next year, yielding a sample mean of 14.44 with a standard deviation of 4.45 pages.
How does bell-shaped curve for sampling distribution of sample means for samples of size n =120 compare tobell-shaped curve for sampling distribution of sample means for samples of size n =95?
Part 1. What is the appropriate distribution for such data? Part 2. Is this lot anomalous?
Let A be the event that a randomly chosen employee has a college degree and B the event that the chosen employee's income is more than $50,000.
What does r 2 of .73 tell us? Is this a strong or weak correlation? How can you tell?
Computation of Expectation, Variance and Covariance.Calculate the variances of Y1 and Y2.
LINEAR PROGRAMMING MODELS
compute the expected value and variance of U.Determine Expected value and variance using uniform distribution.
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