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A null hypothesis isp>0.65. To test this hypothesis, a sample of 400 is taken and alpha is set at 0.05. If the true proportion isp = 0.60, what is the probability of a type II error?
components used in a cellular telephone are manufactured with nominal dimension of .3 mm and lower and upper
a light fixture contains 2 light bulbs. the lifetime xi of each bulb is exponentially distributed with a mean of 200
Estimate the proportion of customers that will be using food stamps at his store. How large a sample is required to estimate the true proportion to within 3% with 98% confidence?
a book was published entitled one million random digits. in it there are listed one million 1000000 digits each of
Imagine you are a manager at a major bottling company. Customers have begun to complain that the bottles of the brand of soda produced in your company contain less than the advertised sixteen (16) ounces of product. Your boss wants to solve the probl..
Find the probability and mean and standard deviation for given data under Binomial distribution.
If the (x, z) points are plotted in a graph, can this graph be used to determine whether the sample comes from a normally distributed population? Explain.
the jones family had a total income of 73000 and paid 22 of their income to taxes. the brown family had a total income
The heights and shoe sizes of the starting lineup of a tournament baseball team are listed below. Use a calculator to determine the correlation coefficient.
Refer to the sensitivity information for the Kelson Sporting Equipment problem in Figure 8.14 (see Problem 5).
considering that a researcher can test at the ltp .05 95 p .01 99 or p .001 99.9 level for statistical significance
The area under the standard normal curve that lies to the left of -1.39 is 0.0823. Without consulting a the table giving areas under the standard normal curve, determine the area under the standard normal curve that lies to the right of 1.39.
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