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If the average tax payer who makes $140,000 per year owes the government $18,200 with a standard deviation of $1500, and the IRS receives a 1040 tax documents from a customer who earned $140,000 that claims he only owes $12,000, should the IRS suspect the tax payer has likely made an error?
Present your graph and fully explain the information it is representing. Pose one question regarding the data and graph or chart for your fellow students to consider and res
Suppose we want to conduct a poll to estimate the proportion of voters who approve of the current mayor, and we plan to use a 95% confidence interval for our estimate.
During the rainy season, we estimate that showers, which significantly increase the flow of a certain river, occur according to a Poisson process with rate λ = 4 per day. Ev
Provide a summary table for the study variables with some descriptive data about the study sample including the means & standard deviations for continuous variables (scale)
Systolic blood pressures are measured at baseline and again 4 weeks later. Compute a 95% confidence interval for the mean difference in blood pressure over 4 weeks.
What is the appropriate procedure to test for a significant in different means between the 2 age groups. What is the p-value corresponding to your this answer and compute a
What are the advantages and disadvantages of regression models in comparison to using a computerized regression routine? Give examples.
A hypothesis states a difference exists between two populations. Sometimes this is an obvious conclusion because the means will be very different.
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