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What is an independent (nonrelated) sample? What is a dependent (related) sample? When should researchers use different hypothesis tests for independent and related samples? Is one type of sample preferable over the other? Provide an example of an independent sample and or a related sample that might be appropriate for use in your organization.
Explain how one extreme score influences mean and standard deviation.
The probability of drawing a 6 (to complete an inside straight) after discarding the ace.
Using Analysis of Variance (ANOVA) test at 5% level if there are important differences in mean sales calls made across the three branches.
Given CAPM as the benchmark, is either of the two managers over-performing the market? What if you use the Sharpe Ratio as benchmark? Explain the answer carefully.
A major study examined the relationship between cause of death (heart attack, cancer, stroke, accident, etc.) and age. A good way to graphically represent the relationship is with
Find the most powerful predictor among the six independent variables using regression.
Mention your decision regarding the null hypothesis. If H 0 rejected can we conclude that treatment 2 and treatment 3 differ? Use 95 percent level of confidence.
You take a random sample and perform a hypothesis test, getting a p-value of 0.2578. What is the appropriate conclusion? Conclude at the 5% level of significance.
Let us speek where the preceding data are representative of the entire sector of retail sales companiesSuppose the annual profits are more than 6.5 thousand $ every employee.
Form a frequency distribution and a percentage distribution that have class intervals with the upper class limits $99, $119, and so on.
Describe a specific application of statistics that either has a direct effect on you or your life.
Regression equation to predict the dependent variable using multiple regression analysis:
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