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In order to be accepted into a JB University, applicants must score within the top 5% on the SAT exam. Given that the exam has a mean of 1000 and a standard deviation of 200, what is the lowest possible score a student needs to qualify for acceptance into the JB University?
At the 0.05 significance level, can he conclude that number of absences has declined? calculate approximately the p -value.
At the .05 significance level, can we conclude that there is a difference in their mean times?
The mean score on a quantitative literacy test was 310 with a standard deviation of 114. Find the margin of error for this estimate at a confidence level of 95%.
an old saying in golf is you drive for show and you putt for dough. the point is that good putting is more important
Write complete linear programming model (All three parts) to find out the number of items to be transported from models A, B, C, and D to nodes 1 and 2 at minimum cost.
If two of totes don't conform to purity requirements, determine the probability that at least one of nonconforming totes is selected in sample?
A field researcher is gathering data on the trunk diameters of mature pine and spruce trees in a certain area. The following are the results of his random sampling. Can he conclude, at the 0.10 level of significance, that the average trunk di..
Test hypothesis that intake of linoleic acid in this group is lower than that of general population. Also, calculate p-value for hypothesis test.
Using the information above, what total size sample would be necessary if we wanted to estimate the true proportion to within? 0.08 using 95% confidence?
A pair of dice is rolled. The sum of the faces on top is observed. What are the expectation, variance, and standard deviation of the observed sum? The Expectation and Variance Template attached to the main posting is optional and recommended.
suppose we receive 75 of a certain part from vendor a and 25 from vendor b. vendor as defect rate is 0.01 and vendor
A shoe salesman want to see if his female customers have a preference in the color of shoe purchased. What is the test value for the following data?
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