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Q1) In web site development project network, shows in following figure, number alongside each activity designates the activity duration (TE) in weeks.
Find out:
a) The ES and LS for each activity.
b) The earliest time that the web site can be completed
c) The slack on all activities.
d) The critical activities.
e) The critical path.
Q2) If A and B are mutually exclusive events P (A) = 0.3 and P (B) = 0.5, then P(A B)=
i) 0.00
ii) 0.15
iii) 0.8
iv) 0.2
Q3) Experiment consists of 4 outcomes with P (E1) = 0.2, P (E2) = 0.3, and P (E3) = 0.4. Probability of outcome E4 is?
i) 0.500
ii) 0.024
iii) 0.100
iv) 0.900
Describe why the normal distribution can be used as an approximation to binomial distribution. What conditions should be met to use the normal distribution to approximate the binomial distribution? Why is a correction for continuity essential.
Use Excel and the data to test whether the mean alcohol expenditures for UCM students is equal to that of SBU students using a 1 % level of significance.
The dealership would now like some general information based on the entire sample of vehicles. Calculate and explain the following:
Here is a scatterplot of average crawling age versus average outdoor temperature six months after birth followed by a plot of the residuals versus average outdoor temperature six months after birth.
The manufacturer of a coffee dispensing machine claims the ounces per cup is normally distributed with population mean equal to 8 ounces and standard deviation equal to 0.9 ounces. If 50 cups of coffee were measured, what is the probability that.
Researchers are studying the absorption of two drugs into the bloodstream. Each drug is to be injected at three dosages. There are 24 people in the study, and they are randomly divided into six groups.
Find the margin of error for the 95% confidence interval used to estimate the population proportion.
In 1,000 samples, assuming that H 0 is true, how many times would you expect to commit Type I error if:
What is the probability that the sample mean will be greater than M = 510. In symbols, what is p (M>510)?
Draw a tree diagram representing the data. What is the probability that a vehicle stolen in this city will never be recovered?
If you draw one ball from the urn what is the probability that it is blue or white?
Draw a scatter diagram and consider the correlation for the provided data. Do larger universities tend to have more property crime.
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