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Q1) Create network for aerospace launch project below and determine its critical path.
Activity
TE (weeks)
Preceding Activities
a
3
none
b
5
c
d
1
e
f
4
b, d
g
2
h
g, f
i
e, h
Q2) In criminal justice system for United States an accused person is innocent until proved guilty; hence, a Type II error is
i) Acquitting a criminal
ii) Convicting an innocent person
iii) Having a mistrial
iv) None of the above
Q3) Probability of Type I error
i) Equals significance level, α, of the test
ii) Equals p-value of the test
iii) Can only be computed for hypothetical values of the unknown paramete
In the real world, given null hypothesis is false; but the collected data lead to the null hypothesis being accepted. That is, the data lead to a failure to reject null hypothesis.
Assume you want to repeat the FDA experiment to achieve an estimation of the mean μ of the amount of caffeine content of a cup of coffee.
Determine the mode for this distribution. Describe why you can't calculate the mean number of times using data in the table.
You are considering adding a new food product to your store for resale. Explain how many units of the new product should be purchased for resale.
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Use this information to make a 95% confidence interval to evaluate true average number of copies made each day at this company.
For following scores determine values of each expression: X: 4, 2, 1, & 5. åX, åX 2 , (åX) 2 , å(X-1).
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Use population distribution to determine expected juror frequencies. Test researcher's claim at a = 0.01.
Estimate the population mean
Compute and interpret each of the statistics in parts(a) through (f) Mean and Median.
Calculate the appropriate test statistic to test the hypotheses related to the concern and test at 5% and 1%.
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