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Perform the indicated test of hypothesis.
HO: M<_7 Versus Ha: M > 7, given x= 0.01, N=25, Xbar = 7.019 and SD is =.1681.
Assume the sample is selected from a normally distributed population.
What percent of sales representatives earn more than $42,000 per year?
Find out the Expected value of the perfect information for the given problem. Given the subsiquent cost tree, illustrate what is the expected outcome.
The following table shows the hardness (in Brinell hardness numbers) and the tensile strength (in thousands of pounds per square inch) of ten specimens of a certain alloy.
What is the probability that between 30 and 40 of the delinquents will commit another crime?
Testing for two Proportions - Is the difference between the averages statistically significant?
From the course text and research I am able to create a frequency band with a single number (ie. 10, 20, 30, etc.). However, I am having difficulty creating the band with a number range (ie. $0-$999,999 or $1,000,000-$5,000,000).
Find the test statistic value for testing the equality of proportion variances.
The following frequency distribution was obtained. The data values are in hours. Construct a histogram for the data .
Determine 80% confidence interval for average weights of Allen's hummingbirds in study regions. Determine the margin of error?
Generate a relative frequency histogram using ten-point intervals to show the distribution of the scores.
Formulate a linear programming model for this problem.
Find the percent of a standard Normal model found in the given region. Round to the nearest hundredth of a percent.
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