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A business finds the average cost required to complete a project is $416 with a standard deviation of $57. A sample of 36 project cost reports was selected at random. Assuming that the distribution of the costs is normal, what is the probability that the average for this sample is between $400 and $425?
Conduct an analysis of variance
Since she is allowed to reserve one time if her first serve is out what should her serving strategy be?
They are thinking of introducing a new flavour, maple-marshmallow Frumpies, and want to know whether children will prefer the new flavour to the old one. Design a completely randomized experiment to investigate this question.
Compute an F-statistic for each linear construct and determine its significance.
Predict the final average of a student who made an 83 on the first test. Give the value of r and r squared for this model. Interpret the value of r squared in the context of this problem.
The margin of error for a 95% confidence interval estimate for the proportion of all students with cell phones is
Suppose x follows a distribution with density function: f(x)=C*abs(x-2), 0 =
If you did not know anything about standard deviation of population from which sample was taken, find out the 95% confidence interval for mean test score.
Compute the correlation among the variables. Describe perfect correlation also negative correlation. Utilize the following data to answer questions related.
Compare among expected monetary approach also expected utility approach. Sketch the brokers utility curve and describe what it says about her risk profile.
Find out the decision strategy company must follow, expected value of strategy, and maximum amount the company must pay market research firm for survey results.
A bowl with 10 marbles: 2 red marbles, 3 green marbles, and 5 blue marbles. We randomly select 4 marbles from the bowl, WITH REPLACEMENT, that is once a marble is selected, its color is noted and the marble is put back in the bowl (notice this doe..
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