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Suppose that the probability that any particle emitted by a radioactive material will penetrate a certain shield is 0.01. If ten particles are emitted, what is the probability that exactly one of the particles will penetrate the shield?
assume that i have a variable with a sample mean 10 and sample n 50. and lets say that the population standard
Suppose you are to analyze the ages of 377 randomly selected employees, ranging from 26 to 58. Using Sturge's formula, find the appropriate number of classes from the sample.
Are big hospitals bad for you? A study shows that there is a positive correlation between the size of a hospital (measured by its number of beds x)
Suppose that your sample mean is 1175 and that your sample standard deviation is 100. Using α=0.05, what is the appropriate conclusion you should draw from your sample?
Brooks Insurance Inc. wishes to offer life insurance to men age 60 via the Internet. What is the probability all five men survive the year? What is the probability at least one does not survive?
question if the iq scores are normally distributed with a mean of 100 and a standard deviation of 15.a find the
Suppose that you select a 50 families sample. Which is the form expected from the distribution of the average or median of the sample?
The “test of independence” and the “test of homogeneity” are completed in identical fashion, using the contingency table to display and organize the calculations. Explain how these two hypothesis tests differ.
Repeat (i) for n = 20,p = 0.5 for the binomial random variable, and λ = 10 for the Poisson random variable.
Suppose that the critical region for a certain test of hypothesis is of the form T greater than or equal to 2.5 and the computed value of T from the data is -2.75.
Distinguish between a randomized block design and a Latin square design. What are the advantages and disadvantages of a Latin square design?
Start with histograms to determine shape; then compare appropriate measures of center and spread, and mention any outliers. See page 158 for guidance.
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