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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.
In a poll to estimate presidential popularity, each person in a random sample of 1000 voters was asked to agree with one of the following statements:
Set up the null and alternative hypotheses to test whether the proportion of MBA students who expect to stay at their first job five years or more is less than one-fourth of all U.S. MBA students.
Identify three discrete variables that appear in your current or future career. How do those variables affect your workplace, your product, or your personnel? How would changes in those variables affect these things?
a random sample of 100 doctors was selected. Suppose you reject the null hypothesis. What conclusion can you draw?
The rejection region for a two-tail test that uses the standard normal distribution is that area under the distribution lying
A committee of three is selected at random from a set consisting of five Democrats, eight Republicans, and two Independents.
Find out the forecast value utilizing three month moving average method, weighted moving average method, exponential smoothing and regression methods.
A computer password consists of four characters. The characters can be one of the 26 letters of the alphabet. Each character may be used more than once. How many different passwords are possible?
A local health center noted that in a sample of 400 patients 80 were referred to them by the local hospital. a) Provide a 95% confidence level for all the patients who are referred to the health center by the hospital.
A description of a Pew Research Center poll referred to "the random generation of the last two digits of telephone numbers." Each digits has the same chance of being randomly generated. Construct a table representing the probability distribution f..
a. Is there evidence the mean amount is different from 1.0 gallon (alpha= 0.01)? b. Compute the p-value and interpret its meaning. c. construct a 99% confidence interval estimate of the population mean amount of paint.
An experiment was performed to investigate lifetime of a component exposed to high heat. Three different oven types were used at either 550°F or 600°F.
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