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1. For the following population of N=10 scores 14,6,8,3,9,12,1,6
a) Draw the histogram showing population distributionb) Locate value of population mean in your sketch and make estimate of standard deviationc) Calculate sum of square (SS), variance, and standard deviation for sample.
2. Compute SS, variance and standard deviation for following sample of n=4 SCORES, 4,0,1,1, (NOTE: computational formula works well with there scores).
A point Y is selected at random from interval (0,1). Then another point X is chosen at random from the interval (0,Y). Find probability density function for X.
The margin of error for polling results is typically determined as the half-width of a 95% confidence interval. With respect to a particular ballot proposition
Would Kruskal-Wallis be the suitable statistical procedure to test this Research Question (RQ)? Describe your answer. When would you use Chi-Square test rather than One-Way Anova?
Probability that the flavor will be carried by Appleton or Beacon is 15/16. Determine the probability a flavor is carried by both Appleton and Beacon.
Assume you have drawn a simple random sample of 10 students from a college campus and recorded how many hours each student studies (X) during the ¯rst week of December, 2009. Results:
Given this information we could use a Z test for two independent means and conclude that indeed the sales are different when the soup is a featured item.
You're considering investing in a portfolio of the common stocks of four publicly-traded companies with betas as follows:
Tim has two more problems to solve on his test, but he doesn't know how long it will take to finish them. He assigns mutually irrelevant normal distributions to the times
A senior accounting major at Midsouth State University has job offers from four CPA firms. To explore the offers further, she asked a sample of recent trainees how many months each worked for the firm before receiving a raise in salary.
Determine the mean and the standard deviation of the sample.
Create a stem-and-leaf display of these data. Create a box plot of these data.
Assume that x has a normal distribution, with the specified mean and standard deviation. Find the indicated probabilities.
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