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1. Construct a Gantt chart for the following set of activities and indicate the project completion time:
2. Given the following network and activity time estimates, determine the expected time and variance for each activity and indicate the critical path:
The pie chart below shows the distribution of the citizens' answers. If there are citizens in the community, how many chose Birds, Hamsters, or Dogs?
In a graduating class of 753 high school seniors, what is the probability that 15 or more will live beyond their 90th birthday?
what is the probability that between 790 and 810 of these intervals contain the corresponding value of icircfrac14?
The lifetimes of light bulbs of a particular type are normally distributed with a mean of 370 hours and a standard deviation of 5 hours. What percentage of bulbs has lifetimes that lie within 1 standard deviation of the mean on either side?
Suppose the inspector is unhappy with the previous result and would like to resample. How many rolls should be sampled to estimate the mean tensile strength within 1.5 PSI with 95% confidence?
the manager of a video library would like the variance of the waiting times of the customers not to exceed 2.30
What is the probability that fewer than 59 CEOs agree that it is attractive to have a joint venture to increase global competitiveness and what is the probability that between 53 and 61 (inclusive) CEOs agree with that assertion?
it is estimated that 68 of the voters in the city are against a new sales tax. if 20 voters are selected at random
According to an early CDC study of 21 patients infected with the swine flu, the average incubation period was 7 days with a sample standard deviation of 4.5 days.
Which of the following preference orderings, if any, could characterize his preferences? Tell me any/all that apply, and explain how you know this.
a piston cylinder compressor is available for evaluation. the device has an initial volume at the beginning of
In an effort to counteract student cheating, the professor of a large class created four versions of a midterm exam, distributing the four versions among the students in the class.
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