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A project manager at COMSOFT corporation has collected statistics on the organization's software development process. He has the size of each project in number of lines of code for the past 20 projects and the number of lines of code in error discovered during code reviews for each project. Describe what type of control chart you can use and how do you calculate the control limits (provide formula) to check if the software coding process in this organization is in control.
Describe ways in which the use of MS Excel as a tool for interpreting data can be used by a manager of an organization.
Suppose that a random sample of 800 early replacement buyers yields a mean number of dealers visited of 1 = 3.3, and that a random sample of 500 late replacement buyers yields a mean number of dealers visited of 2= 4.5.
College students are a major target for advertisements for credit cards. At a university, 65% of students surveyed said they had opened a new credit card account within the past year. If that percentage is accurate, how many students would you exp..
Which of the following is a major difference between the binomial and the hypergeometric distributions?
The width of a confidence interval will be:
If the mean lifetime of this type of component is 100 hours and its standard deviation is 19 hours, how many of these component must be in stock so that the probability of the system is in continual operations for the next 2,000 hours is at least ..
What are the singleton subsets of X and Y? are the empty set and the sample space the singleton subsets?
Assuming that the variability is unchanged (i.e., σ = 6), is there sufficient evidence to suggest that the strength of the product has increased at the 1% level of significance?
In this research report you will be analysing a set of data of which can be found in an EXCEL file available for download in the Assessment section of the Blackboard site.
Use a decision tree to describe the possible strategies and the consequences (or payoffs) of each. Show your decision tree.
What is the probability that at most five cases of E. coli per 100,000 are reported in California this year?
a) What type of research uses numeric measurement data? b) What type of research uses a research hypothesis? c) What type of research does not use statistical data analysis?
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