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1. What would you suggest to be the appropriate statistic tests to use and why ?
2. Any suggestions on stating the hypothesis in a more professional manner?
This is what I have so far
Null Hypothesis #1. There is no relationship between episodes of bullying and post-traumatic stress disorder.
Alternative Hypothesis #1. Post-traumatic stress disorder is directly related to episodes of bullying.
Null Hypothesis #2. There is no relationship with the severity of bullying episodes and post-traumatic stress disorder.
Alternative Hypothesis #2. The severity of bullying episodes is related to post-tramatic stress disorder.
A researcher wants to see whether the stress of final exams elevates the blood pressure of freshman women. When they are not under any unusual stress, healthy 18 year olds have a systolic blood pressure that averages mean of 120 mm Hg with a stand..
So construct a multiple regression model for predicting the crime rate based upon various explanatory variables unemployment rate, median income, education level.
Is the z value positive or negative? Explain why it should be positive or negative.
Is there a meaningful relationship between grades and SAT scores? If a student scores a 450 on the SAT what will her GPA be?
A sample of 100 widgets from the Acme production line shows that the average lifespan of these parts is 900 hours. The standard deviation of production has been 200 hours historically and is known to be normally distributed.
What is the difference between strong negative and strong positive correlation? What does zero correlation tell you? Can you share a relationship between two variables that is typically negative?
Confidence interval for the true mean and Evaluate the 95% confidence interval for the true mean advertising expense?
The lapping process, which is used to grind certain silicon wafers to the proper thickness, is acceptable only if 'sigma', the population standard deviation of the thickness of dice cut from the wafers, is at most 0.50 mil.
Plan the scatter diagram
Using WSJ or IBD look up the following stocks: General Electric, General Motors, Microsoft and Intel and answer the following questions for each stock. You may have to refer to several issues of your newspaper for all of the information if the pap..
The store manager is under impression that his sales people do more business if they score higher on the social skills test which was administered this year. 5 victims were selected at random. Below, the results are X =test score, Y =weekly sales ..
The director of admissions at a large university advises parents of incoming students about the cost of textbooks during a typical semester.
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