Question: It has been claimed that 65 of homeowners would prefer
It has been claimed that 65% of homeowners would prefer to heat with electricity instead of gas. A study finds that 60% of 200 homeowners prefer electric heating to gas. In a two-tail test at the 0.05 level of significance, can we conclude that the percentage who prefer electric heating may differ from 65%? Determine and interpret the p-value for the test.
Relevant QuestionsIn the past, 44% of those taking a public accounting qualifying exam have passed the exam on their first try. Lately, the availability of exam preparation books and tutoring sessions may have improved the likelihood of an ...According to the U.S. Bureau of Labor Statistics, 7.0% of female hourly workers who are 16 to 24 years old are being paid minimum wage or less. A prominent politician is interested in how young working women within her ...Website administrators sometimes use analysis tools or service providers to “track” the movements of visitors to the various portions of their site. Overall, the administrator of a political action website has found that ...Using assumed true population percentages of 2%, 3%, 4%, 5%, 6%, and 7%, plot the power curve for the test in Exercise 10.63. In exercise A simple random sample of 300 items is selected from a large shipment, and testing ...The average U.S. household has $235,600 in life insurance. A local insurance agent would like to see how households in his city compare to the national average, and selects a simple random sample of 30 households from the ...
Post your question