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1) Construct a histogram from the following data using 8 bins that exactly cover the range: 5, 12, 6, 29, 19, 24, 29, 18, 28, 16, -10, 15, 23, -3, -8, 28, 16, 28, 28, 0.
2) The agriculture department has estimated that the distribution of gophers in western Oakland County is Poisson with an average of 2 gophers per acre. A new 3 acre piece of property is on sale. What is the probability that there are less than 3 gophers on the property.
Over the past decade, there has been a strong positive correlation between teachers salaries and prescription drug cost.
Summarize in words each of the following findings: The Tukey test was significant at .01 for two groups (A and E).
A researcher plans a study in which a crucial step is offering participants a food reward. It is important that the three food rewards be equal in appeal.
Three defective electric toothbrushes were accidentally shipped to a drugstore by Cleanbrush Products along with 17 nondefective ones. What is the probability the first two electric toothbrushes sold will be defective.
1a. the mean weight of 120 7th graders is 75 lbs with a standard deviation of 6 lbs. calculate the standard error of
The sampling distribution of mean score is approximately Normal. It has mean. What is its standard deviation?
Pedro wants to know if the weight loss of his group on the chocolate-only diet is representative of weight loss in a large population of middle aged men.
A personnel manager for a large corporation feels that there may be a relationship between absenteeism and age and would like to use the age of a worker to develop a model to predict the number of days absent during a calendar year.
Test the claim of the brewery about the mean volume equal to 32 oz. at the 0.05 significance level. It's your choice whether to use z or t.
one environmental group did a study of recycling habits in a california community. it found that 72 of the aluminum
To find out the efficiency of the current ticket operation, Mike wishes to examine several queue operating features.
What is the difference between expected value and mean? In other words, what would be difference between the expected value of something, as opposed to the mean of that something? And how do I know when I should be finding the expected value and n..
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