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Given the following raw scores, calculate the following values: Range, Variance and Standard Deviation, show your calculations:
Scores: 9, 7, 8, 4, 8, 8,7, 8, 9, 6, 3
What is the probability that at least three students choose Supreme Chocolate?
A contingency table has 5 rows and 4 columns. How many degrees of freedom are there?
Mention the critical value of test statistic (Or give the p-value of the test.)
Use frequency distribution to create a probability distribution, determine the (b) mean,(c) variance and (d) standard deviation of probability distribution and (e) interpret results in context of real life situation.
Multiple choices based on regression analysis - how much or how many but instead is assigned values to represent categories
For a normal distribution, find the z-score value that separate the middle 90% of the distribution from the 10% in the tails.
Find the regression equation and percentage of variance and test whether the equation is significant portion of the variance.
Determine margin of error for confidence interval in (a)?
Tavern has budget of $2,000 for beer for Super Bowl Sunday. Betty desires to find out number of gallons of each brand of beer to order so as to maximize profit. Create a linear programming model for this problem.
What should the cut-off score be for the interviews? (Round to nearest whole number).
How large a sample is needed to find the population mean within $250 at 99 percent confidence?
A random sample of 100 students at Southern University was collected. The mean age was found to be 24.2 years, with a standard deviation of 3.4 years.
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