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With reference to Exercise 12, if n = 100, θ0 = 0.40, θ1 = 0.30, and α is as large as possible without exceeding 0.05, use the normal approximation to the binomial distribution to find the probability of committing a type II error
Exercise 12
Use the Ney man-Pearson lemma to indicate how to construct the most powerful critical region of size α to test the null hypothesis θ = θ0, where θ is the parameter of a binomial distribution with a given value of n, against the alternative hypothesis θ = θ1 0.
a teacher believes that the class scores on a final examination should be approximately normal distributed. if this
An average computer mouse inspector can inspect 50 mice per hour. The 48 computer mice inspectors at a particular factory can only insppect 46 mice per hour with a standard deviation of 10.
At α = 0.10 test the claim that there is a difference in means of the salaries. (a) State the Hypotheses: (b) Compute the Test statistic: (Round off correctly)
1. A university is starting a new college of engineering, has extensive funding, and wants to use com- petitive benchmarking. What U.S. universities might be useful as objects of the competitive benchmarking effort?
describe how you would use a random number table to get a random sample of 50 people who had listed phone numbers in a
The director of a state agency believes that the average starting salary for clerical employees in the state is less than $30,000 per year. To test her hypothesis
Determine the probability that sample mean will be greater than M=510. In symbols, what is p(M>510)? Determine the probability that sample mean will be greater than M=520.
Sampling seventy-two percent of americans squeeze their toothpaste tube from the top. This and other not so serious finding are included in The first really important survey of american habits.
fuel economy estimates for an automobile built one year predicted a mean of 27.2 mpg and a sd f 5.8 mpg.what is the
Dr. Justin Case wants to explore whether or not students perform better if they cram for a test (massed practice) or if they space their studying over weeks (distributed practice).
1. Suppose you are given a particular set of data and found that r = 2.5. How would you interpret this result?
suppose you work for a company that manufactures electronics. the development analysts estimate that 2 of their
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