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In this assignment, your team is managing a software development project with a total project budget of $178,500. Total work effort is 1,536 hours and the timeline for completion 24 weeks. At the end of week 12, the plan was to have completed 55% of the project scope. However, actual progress was calculated at 650 worth of hours completed on project activities and actual cost (in hours) for these activities is 780.
With your team, please answer the following questions. For each response, show the pertinent formula(s) as it applies and "show your work" in addition to providing a narrative statement.
Find the size of the sample required to estimage the mean age of textbooks currently used in college courses.
Assume a normal population. Using the .05 significance level, can we conclude the mean is different from 100?
Building a multiple linear regression model. Let's now build a model to predict the life satisfaction score, LSI
Define T , the "ordinal triangle," by T := {(x , y) ∈ X × X : y x }. Evaluate the iterated integrals (( 1T (x, y) dµ(y) dµ(x ) and (( 1T (x, y) dµ(x ) dµ(y). How are the results consistent with the product measure theorems?
You are testing the null hypothesis that there is no linear relationship between two variables, X and Y. From your sample of n=10, you determine that r=0.80.
Social support and stroke-induced aphasia. Hilari and Northcott (2006) used a Social Support Survey (SSS) to gauge how well supported individuals suffering.
Identify and interpret the p-value for the test, then construct and interpret the 90% confidence interval for the difference between the population proportions.
20 are selected without replacement for functional testing. If 20 cards are defective, what is the probability that at least 1 defective card is in the sample?
Since the introduction in the UK of the Equal Pay Act in 1970, there has been considerable interest in monitoring the difference between women and men's pay. Official statistics, via the Office of National Statistics (ONS), play an important role ..
?(a) What is the probability of randomly selecting 1 woman with a height less than 66? inches?
A random sample of 25 observations produced a sample mean of 41.8. Using a = .025, would you reject the null hypothesis?
What assumption about the population distribution is needed in order to conduct the t test.
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