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The health of the bear population in yellowstone national park is monitored by periodic measurement taken from anesthetized bears. A sample 54 bears has a mean weight of 182.9 Ib. Assuming that the standard deviation is known to be 121.8Ib use 0.05 significance level to test the claim that the population mean of all such bear weights is greater than 150 Ib
Suppose that the average annual salary for the worker in United States is $39,000.00 and that the annual salaries for Americans are normally distributed with a standard deviation equal to $7,000.00.
What is the theoretical probability that Mr. Nerdly assigns 10 homework problems as a result of a randomly selected student playing the birthday game?
What is critical z-value which corresponds to confidence level of 88%.
A random sample of 16 ages is drawn from the population, and we find the sample mean of these observations to be μ = 8.76
Use the normal-theory method to test for significant differences in 12-month mortality between the two groups.
The university policy department must write, on average, five tickets per day to keep department revenues at budgeted levels. Suppose the number of tickets written per day follows a Poisson distribution with mean of 6.0 tickets per day. Find the p..
Describe what type of control chart you can use and how do you calculate the control limits (provide formula) to check if the calculate the control limits in this organization is in control.
What is the probability that he completed the assignments?
For the following data set, indicate whether the shape of the distribution is normal, positively skewed, or negatively skewed. Provide evidence for your answer by calculating the mean, mode, and median.
What is the difference between dependent and independent samples? Discuss differences is statistical treatment, statistical power, and data management.
What is the probability that a randomly chosen employee is an Administrator if the employee has the opportunity of gaining promotion next year?
The chi-square goodness of fit is______________a one-tailed test with the rejection region in the right tail.
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