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Students in a statistics class at a large state university were given a survey in which one question asked was age (in years); one student was a retired person, and her age was an "outlier". What does an "outlier" mean? If student height is measured, would this same retired person necessarily have a value that was an "outlier"? Explain.
If a pregnancy length is randomly taken from this distribution, what is the probability that the length of that pregnancy is less than 260 days?
Tavern has budget of $2,000 for beer for Super Bowl Sunday. Betty desires to find out number of gallons of each brand of beer to order so as to maximize profit. Create a linear programming model for this problem.
Expand and aggregate plan using each of the following guidelines and complete the total cost for each plan. Which plan has the lowest total cost.
30% of households say they would feel secure if they had $50,000 in savings. you randomly select 8 households and ask them if they would feel secure if they had $50,000 in savings. find the probability that the number that say they would feel secu..
The NY Dept of Motor Vehicles (DMV) designs its license plates with space for 7 letters or numerals. In the most recent iteration, the DMV uses three letters followed by 4 numbers.
At a 5% level of significance, is there enough evidence from this survey to conclude that more than half of all adults would rather have $100 than a day off?
A researcher used stepwise regression to create regression models to predict Birthrate (births per 1000) using five predictors:
Write a statistical laboratory report using the guidelines in the assigned article, "How to Write a Statistical Report."
Is there sufficient evidence to support the claim that site has an effect on the amount of pesticide?
Which of the given properties doesn't apply to theoretical normal distribution?
Using the original data, test at the 5% significance level that the population standard deviation of studying times is greater than 4 hours.
You have two unbiased estimates, e 1 and e 2 , of a quantity with variances V 1 and V 2 respectively, and covariance Cov {e1,e 2 } = C. Form a new unbiased estimate:
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