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1) Did you find any outliers on the dependent variables that were due to errors of coding? If so, what and why? How would you correct an error of coding?
2) How might you deal with outliers that are not due to coding errors? Explain your reasoning.
Must the company replace old truck? If so which of new trunks must they use? Describe in detail.
Find the value of sample covariance in linear regression model
Problem based on combinatory - how many different license plates are possible?
A sample proportion is calculated from a sample size of 394. How large of a sample would we need in order to decrease the standard error by a factor of 9?
Using this information, calculate Blpha risk (probability of Type II error) if the true population mean really is 81.
A researcher believes that the percentage of people who exercise in California is greater than the national exercise rate. The national exercise rate is 20%. The researcher gathers a random sample of 120 individuals who live in California and find..
Estimating confidence interval for mean value of y and find a 95% confidence interval for the expected average total sleep time for a child of age 12
An element E has a constant failure rate λ and a reliability at time t of R(t)=p, if p=0.5 and 0.9, what is the effect on Rs(t), basic reliability, serial Mean Time Between Failure, hs(t), MTBFs if additional elements are added to the baseline sys..
The analysis of covariance (ANCOVA) is generally useful for _______________
In a distribution of scores, the arithmetic mean is 51, the median is 55, and the mode is 62. What is the score, in percentile form, of a subject who does less well than two-thirds of the sample?
Recent actual and forecasted data for product XYZ is given in the following table.
To report their finding they want to create a 90% confidence interval. What would be the margin error for this confidence interval?
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