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Heights of a man distribution with a mean of 173cm and standard deviation of 5cm,using the empirical rule what is the percentage of the men between the following values.round to one decimal place
Annual family dental expenses for the families of a random sample of ten employees of a company are given below. You can assume the family dental expenses for the employees of the company are normally distributed.
suppose a simple random sample of size 40 is selected from a population with 12. find the value of the standard error
1. The local county is considering a budget proposal that would reallocate funding to renovate the city pools. A survey is conducted to measure public opinion of the proposal. A total of 200 individuals responded to the survey. Fifty of the respon..
what is the post-test probability of disease being present in a patient with a positive test result for test A if a cutoff value of 4.0 mg/ml is chosen?
Given that the mean of all 102 atomic numbers is 51.794, and the population standard deviation is 29.804, what is the probability that the mean of the 40 atomic numbers selected by the student will be at least 57.3?
using the flag data set given below fit a model that predicts cost based on dotest. use the complete data set in your
Refer to Grocery retailer Problem 6.9. The observations are listed in time order. Assume that regression model (12.2) is appropriate. Test whether or not positive autocorrelation is present; use α = .05. State the alternatives, decision rule, and ..
Last year, television station WXYZ's share of the 10 P.M. news audience was approximately equal to, but not greater than, 25%. The station's management believes (and would like to claim for advertising purposes) that the current share is higher th..
Six samples of subgroup size 2 (n = 2) were collected. Determine the upper control limit (UCL) for an X-bar chart if the mean of the sample averages is 4.7 and mean of the sample ranges is 0.35
References to data sources used for your study. Although you will work as a group to undertake your analysis, you must submit an individual report. The text, graphs, tables etc included in your report should be your own work. Data have been collec..
How do we go about interpreting the results of various types of statistical tests in health care research?
the time in hours for a worker to repair an electrical instrument is a normally distributed random variable with a mean
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