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A fair die is thrown 10 times. What is the probability of getting 6 in 4 throws?
The owner of a fish market has an assistant who has determined that the weights of catfish are normally distributed, with mean of 3.2 pounds and standard deviation of 0.8 pound. What percentage of samples of 4 fish will have sample means between 3.0 ..
What is an interaction? Describe an example and identify the variables within your population (work, social, academic, etc.) for which you might expect interactions?
A maker of a certain brand of low fat cereal bars claims that the average saturated fat content is 0.5 grams. To check the claim, a random sample of 9 cereal bars of this brand were drawn, and the sample mean and sample standard deviation was found ..
measures of central tendency and dispersion with spssthe statistics for this week become the basis for several other
Examine the hospital database. Suppose you want to “prove” that the average hospital in the United States averages more than 700 births per year. Use the hospital database as your sample and test this hypothesis. Let alpha be .01. On average, do hosp..
835 elderly people are sampled and .086 are diabetic. With a 90% confidence interval find the proportion of elderly people..0575-.1145
The sample average number of strokes being more than 5.0.
A possible measure of the overall senioritis in a high school senior class is the percentage of seniors who miss school on "senior skip day." The histogram below summarizes some "senior skip day"
Calculate an appropriate measure of agreement between DHEC and the independent company - Estimate for the proportion with a fast reaction time for each sex.
If the coefficient of determination between two independent variables is 0.20, what is the VIF?
Provide an example of the use of multiple regression
The following data represents the marks of 11 students in group (A) : 14, 20, 17, 16, 18, 19, 15, 13, 2, 20, 14, 12 Compute the best central and dispersion measures. If the central and dispersion measures for the marks of the students in group (B) ar..
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