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An average computer mouse inspector can inspect 45 mice per hour. the 42 computer mice inspectors at a particular factory can only inspect 40 mice per hour with a standard deviation of 8. Does the company have reason to believe that these inspectors are slower than average?
How to get original X variable in terms of the variance-covariance matrix for the regression coefficients pertaining to the transformed x variable? Y^=b0+b1x+b11x^2, x=X-mean(X), we get b0'=b0-b1mean(X)+b11(X^2),b1'=b1-2b1mean(X), b11'=b11
1. the residents of a housing development for senior citizens have completed a survey in which they indicated how
To maximize Andre's probability of landing on the net, how far away from the cannon should he position the nearest edge of the net?
a clinical trial was conducted to test the effectiveness of the drug zipiclone for treating insomnia in older subjects.
Determine the standard error of estimate. Suppose a large sample is selected (instead of just five). About 68 percent of the predictions would be between what two values?
an instructor gives his class a set of 13 problems with the information that the next quiz will consist of a random
She wants to be 95% confident that her estimate is correct. If the standard deviation is $1050, how large a sample is needed to be accurate within $200?
test the hypothesis that the mean μ = 100 against the alternative μ ≠ 100. Find the type II probability when the true mean heat evolved is 103.
using the minitab t calculator find the value from the t distribution to two decimal places for the calculation of a
Select two non-parametric tests utilized in business decision making? Give an example of each test with an appropriate business situation.
Determine the probability that Mexican American male in the 20 -74 age range has serum cholesterol value greater than 240 mg/dl.
the bureau of the census reports that the average commuting time for citizens of both baltimore maryland and miami
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