Question: Given 0 85 n1 400 0 90
Given = 0.85, n1 = 400, = 0.90, n2 = 350, construct a 90% confidence interval for the difference between the population proportions. Is there a difference between the population proportions at the 10% significance level? Explain.
Relevant QuestionsConsider the following competing hypotheses and accompanying sample data.H0: - = 0HA: - ≠ 0x1 = 100 x2 = 172n1 = 250 n2 = 400a. Calculate the value of the test statistic.b. Calculate the p-value.c. At the 5% ...According to the Pew report, 14.6% of newly married couples in 2008 reported that their spouse was of another race or ethnicity (CNNLiving, June 7, 2010). In a similar survey in 1980, only 6.8% of newlywed couples reported ...Consider a multinomial experiment with n = 400 and k = 3.The null hypothesis is H0: p1 = 0.60, p2 = 0.25 and p3 = 0.15.The observed frequencies resulting from the experiment area. Deine the alternative hypothesis.b. ...An Associated Press/GfK Poll shows that 38% of American drivers favor U.S. cars, while 33% prefer Asian brands, with the remaining 29% going for other foreign cars (http://www.msnbc.com, April 21, 2010). This highlights a ...A recent Health of Boston report suggests that 14% of female residents suffer from asthma as opposed to 6% of males (Boston Globe, August 16, 2010). Suppose 250 females and 200 males responded to the study.a. Develop the ...
Post your question