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Which of these statements is NOT true about CPM and PERT?
a. In a project, if the duration of the activities is known we use PERT, if the duration is not known we use CPM.
b. CPM and PERT have been used in scheduling construction projects,
c. The predecessors are a set of activities that must be completed before an activity.
d. CPM and PERT have been used in building ships.
Two types of flares are tested for their burning times (in minutes) and sample results are given below.
Suppose that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of 3 to be 115 or more?
What is your decision regarding the null hypothesis and interpret.
If there are 500 students in the school, what is the probability that everyone will pass the exam?
The mean of a standard normal probability distribution.
Find the average age at which people will experience their first cardiac incident, given that 17% of all initial cardiac incident victims are younger than 50. Please, interpret the result.
Utilizing your charts stated whether the filling operation has been in control for every of the 18 operating hours this day.
Experience has shown that radon gas level is approximately normally distributed for this population.
Draw the suitable 2x2 table, compute and interpret suitable measure of association.
Suppose the sample variance for 30 parts turns out to be s 2 = .0005. Use α = .05 to test whether the population variance specification is being violated.
A jar contains 2 black marbles and 8 white marbles. If you randomly pick 2 marbles without replacement, what is the probability that you get one marble of each color?
About what percent of the observations lie between 55 and 65?
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