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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?
Construct a 95% confidence interval for the proportion and calculate the P value for the given test.
Establish a 99% Confidence interval about the difference in the proportion of the town voters and county voters who favor the proposal.
What kind of probability uses sample spaces to find out numerical probability that event will happen?
Speed of cars travelling on I-85 in Gaston County is normally distributed with average speed (µ) of 66 MPH and standard deviation (σ) of 8 MPH.
If circuit switching is utilized, how many user can this access link support?
The GMAT scores from a sample of 50 applicants to an MBA program indicate that none of the applicants scored below 450. A frequency distribution was formed by choosing class intervals 450 to 499, 500 to 549, and so on, with the last class having a..
Determine probability that number of boats constructed next month will be between 4 and 7 (both inclusive).
For a standard normal distribution, findout the percentage of data that are among 3 standard deviation below the mean also1 standard deviation above the mean.
The following table shows the number of miles driven in each trial.
Examine the residual files and produce appropriate residual plots to examine the assumptions. Are the Level-1 residuals normally distributed? Are the level-2 residuals multivariate normal? How do you know?
At the .05 significance level, can we conclude that the guideline is still reasonable?
Determine a 99% confidence interval for mean pH in rainfall. How would you distinguish interval?
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