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Q1) Let the following table:
PRET. ACT
TIME ESTIMATES (days)
Activity
to
tml
tp
te
A
-
6
B
4
5
C
2
D
8
E
1
3
F
i) What is the probability of this project being completed earlier than 19 days?
Between 13 and 15 days?
Determine the completion time and the standard deviation (σ) for project round off standard deviation to the nearest hundredth: two decimal places.
ii) What is the completion time at 95% confidence level?
Set up null hypothesis for associated F test.
For an arch chosen at random in Arches National Park, use the preceding information to estimate the probability that the height of the arch poening is:
The mean and variance of the total amount of money that is collected from a car that crosses the bridge are:
Find the probability that 4 of the 5 committee members belong to a union.Find the probability using hypergeometric distribution.
You are given the following frequency distribution for the number of errors 55 students made in a test:
The pooled variance of two samples is:
Determine relative frequency of X=4? Generate the cumulative frequencies.
Determine odds student gets more than 14 questions correct? Determine the odds student gets exactly 12 questions correct?
Following sample data shows the weekly closing price of ABC stock. Compute the sample mean and variance from this data set.
Rank the funds by using this alternative measure of risk. Which, if any outperformed the market on the risk-adjusted basis.
When carrying out a large sample test of H 0 : m =10 vs. H a : m ¹ 10 by using a p-value, we reject H 0 at level of significance α when the p-value is:
What would you recommend Taylor do to cut back its labor cost? (Illustrate using an ABC plan.)
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