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An article states that movie attendance declined in 2005. A survey found that 740 of 1000 randomly selected adult Americans preferred to watch movies at home rather than at a movie theater. Is there convincing evidence that the majority of adult Americans prefer to watch movies at home? Test the relevant hypotheses using a 0.05 significance level. (Round your test statistic to two decimal places and your P-value to four decimal places.)
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According to a survey of 1000 adult Americans, 220 of those surveyed said playing the lottery would be the most practical way for them to accumulate $200,000 in net wealth in their lifetime. Although the article does not describe how the sample was selected, for purposes of this exercise, assume that the sample can be regarded as a random sample of adult Americans. Is there convincing evidence that more than 20% of adult Americans believe that playing the lottery is the best strategy for accumulating $200,000 in net wealth? Use α = 0.05. (Round your test statistic to two decimal places and your P-value to four decimal places.)
145 out of 165 people who lost luggage on that airline were reunited with the missing items by the next day. Does this cast doubt on the airlines claim?
If there is one-year warranty on the equipment, what proportion of the customers will actually make a valid warranty claim?
a) Summarize the above information in a table b) Assuming that the factory can sell all the printers and scanners that it assembles, formulate the above information into a Linear Programming problem.
Assume that 5% of men and only .25% of women are colorblind. A colorblind person is chosen at random:
1.a rbd on the number of insects was performed yielding the following table. test the constrast if insecticide 1 and 2
If no more than 5% of the containers are to weigh less than 15.80 oz., what must the standard deviation of the weights equal?
the upper limit of the 95 confidence interval for the population proportion p given that n 300 and hat p 0.10 is
1. for a standard normal model find the z-value that is less than the mean and for which 67 of the area under the
Find the (a) coefficient of determination and interpret the results, and (b) standard error of estimate s e and interpret the results.
can you give me an operation example of the differences between scalar multiplication and matrix
Professor Cox needs a volunteer amongst 30 students in his statistical applications course. The average age of his students is 25 years, with the standard deviation of 3 years.
For each of the following parametric tests, identify the appropriate non-parametric counterpart: This problem belongs to Statistics and it discusses about identifying appropriate non-parametric counter parts for various tests
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