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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 calculate the control limits in this organization is in control.
The population standard deviation is σ2 = 7. Test that the population means differ using a 1% significance level.
The distribution of SAT scores is normal with a m=500 and a standard deviation of o=100. What SAT scores (X values) separate
The probability of an randomly selected person quits a team is 0.125. Assume the team has n members. Determine the smallest n that the team needs to have if the probability of the team has at least 20 members left is 0.9.
Would the Kruskal-Wallis be an appropriate statistical procedure to test this Research Question (RQ)? Please explain your answer.
Determine a 95% confidence interval for true time battery pack can function before having to be recharged.
Five homes were recently sold in Oxnard Acres. Four of the homes sold for $400,000 while the fifth home sold for $2.5 million. Which measure of central tendency best represents a typical home price in Oxnard Acres?
Assume you are using ANOVA to study some phenomenon. There are three treatment levels and a total of 17 people in the study. Complete the following ANOVA table.
The following data represent the cost of electricity for the period of July 2008 for a random sample of 50 one-bedroom apartments in a large city.
Determine the conditions under which you would use a discrete probability distribution rather than a continuous probability distribution. Provide one (1) example to illustrate your reasoning.
Use the normal distribution of SAT critical reading scores for which the mean is 507 and the standard deviation is 121. Assume the variable x is normally distributed.
Correlation between the two variables - Evaluate the value of the correlation coefficient.
Compute the mean, median and mode measures of central tendency for the number of years of work experience. Which measure does the best job of describing central tendency for this variable?
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