Econ 6050 Case Assignment

Econ 6050 Assignment #3 Question #1 Once we fair(a) the income samples from each major(ip), we issue that the average earned by those graduates who majored in economics is $30,206 epoch the average earned by those graduates who majored in marketing is $27,196. In looking at lone(prenominal) the mean of the samples, it seems that those who major in economics will earn more than, but we should to a fault account if this is only out-of-pocket to a sampling error. In examination the data, we can set up the following conjecture: allow Ho: Mecon = Mmkt ? D = Mecon Mmkt = 0 Ha: Mecon ? Mmkt ? D = Mecon Mmkt ? 0 After testing, we close out the data because the residuum is too peachy to be due to sampling error. We run into that in that location is a 95% vista that the authentic difference in the mean is between 2141 and 3881. This room that those who major in economics in contrast to marketing atomic number 18 more likely to make more bulli on on average. Question #2 In hazelwood (a suburb of St. Louis), African-Americans were not happy with the urban center because they believed that they were not somewhat delineated among teachers in the city. African-Americans make up 5.7% of the population in the city. However, out of the 405 teachers in the initiate remains sample, they were represented by 15 teachers, which is only about 3.7%.

To properly test whether African-Americans be underrepresented, the following possibility can be formed: let Ho: coincidence of African-Americans education in school administration = Proportion of African-Americans in the city Ha: Proportion of African-Americans teac! hing in school system ? Proportion of African-Americans in the city We will not decide to dissent our null hypothesis after testing these hypotheses because the difference is not too great to be due to sampling error. This shows that the African-Americans are not underrepresented in the school system. It is also discovered that there is a 95% chance that the actual percentage of African-Americans represented in the school system lies...If you want to get a full essay, inn it on our website: BestEssayCheap.com

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