A recent Yahoo News article stated that at least 60% of the new construction jobs in western North Dakota’s oil and gas fields are being filled by out-of-state workers. You take a random sample of 150 construction workers in the area and find that 84 of them are from out-of-state. Is this enough evidence to challenge the newspaper report? Use a significance level of 5% for your test.
Answer to relevant QuestionsAmong the measurable goals set by the Jefferson County School Board (Golden, Colorado) is that more than 75% of community members will agree “that the Board of Education provides them regular opportunities to voice their ...Refer to Exercise 49. In exercise The company that produces the scratchandwin tickets for The FilthyRich Instant Win Super Lottery has assured you that exactly 10% of the tickets are winners (that is, they will pay the ...Almonte, Inc., a maker of low-priced hair care products, claims that its hair spray lasts as long as the industry leader’s higher priced product. You take a sample of 60 applications of Almonte’s hair spray and 60 ...The Journal of Business wants to test the hypothesis that there is no difference in the average R& D expenditures for midsized American electronics firms and midsized Korean electronics firms. A sample of 14 American firms ...In a recent poll of 1000 randomly selected residents of eastern Germany and 1200 randomly selected residents of western Germany, 63% of the eastern Germany sample and 55% of the western Germany sample believed that they were ...
Post your question