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A prison official wants to estimate the proportion of cases of recidivism. In examining 250 convicts there are 65 cases. with 99% confidence interval what is the range? How do you figure this type of problem?
What is the optimal strategy for producing 500 tons of newsprint pulp, 600 tons of packaging pulp, and 300 tons of print stock quality pulp at minimum cost?
A design for 2 treatments has p pairs of blocks. Each block has three plots. In each pair one block has two plots with A and one with B, and the other has two plots with B and a single plot with A.
Enter the data and use the appropriate commands to find the mean, median, mode, sample standard deviation, population standard deviation, 10% trimmed mean, and data count.
The majority of the data is basically distributed if there are enough subjects. For instance, if you collected test scores of only a few honor students, the data will most likely not be normally distributed because you would have a sample that did..
A library checks out an average of 250 books per day, with a standard deviation of 75 books. If a sample of 36 days of operation is selected and the sample mean is computed,
The distributor selects one cable at random from among all cables in stock. If the cable selected is found to meet the strength specifications, what is the probability that the cable was produced at Plant A?
Speed of cars travelling on I-85 in Gaston County is normally distributed with average speed (µ) of 66 MPH and standard deviation (σ) of 8 MPH.
Five cards are drawn from an ordinary deck without replacement. Find the probability of getting:
At the .05 significance level, can she conclude that there is a difference in the mean amount of weight loss among the three diets?
Is there evidence to suggest a difference in the mean waiting times at the four body shops? Use the .05 significance level.
Determine and record how much of the math grade can be explained by the PE grade? How much of the Writing grade can be explained by the Reading grade?
Assume X is an exponential random variable with parameter lambda. Find the method of moments estimator for lambda.
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