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The weights of a random sample of cereal boxes that are supposed to weigh one pound are listed here. Estimate the variance of the entire population of cereal box weights with 90% confidence 1.05 1.03 .98 1.00 .99 .97 1.01 .96
Is it true that one of the important properties of time series models is that some sort of pattern in the data over time should be detected first and then used within the model?
There are 400 employes and 100 of them smoke. There are 250 males working for the company and 75 of them smoke. What is probability of an emloye selected random?
Use confidence intervals to determine whether or not (a) we can be 95% certain that the average woman considers herself overweight as compared to her ideal weight.
At the 5% level of significance, does this result support the conjecture?
State the hypotheses for a right-tailed test.
How can the binomial distribution be used in a business situation? What type of data would you use and what would you learn from this?
The athletic director claims that the atendance is the same as last year. What is the test value needed to evaluate the claim?
Give an example in health care management where you would use probability statistics to determine an outcome such as providing raises based on certain financial goals being met?
Perform the 5 steps of hypothesis testing procedure. Please present the calculations and results and Graphs. Make all possible observations and interpret the results
Observations are taken on net revenue from sales of Hughes, HNS, and satellite services to see if offering rebates is beneficial for the organization.
What is the approximate probability that the mean diameter of the sample of 36 bearings will lie within 0.0001 inch of the population mean diameter of the bearings?
The Ohio Department of Agriculture tested 203 fuel samples across the state in 1999 for accuracy of the reported octane level. For premium grade, 14 out of 105 samples failed
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