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Bus 308 Week 2 Assignment FALL 2104




Week 2;Testing means with the t-test;For questions 2 and 3 below, be sure to list the null and alternate hypothesis statements. Use.05 for your significance level in making your decisions.;For full credit, you need to also show the statistical outcomes - either the Excel test result or the calculations you performed.;1;Below are 2 one-sample t-tests comparing male and female average salaries to the overall sample mean.;Based on our sample, how do you interpret the results and what do these results suggest about the population means for male and female salaries?;Males;Females;Ho: Mean salary = 45;Ho: Mean salary = 45;Ha: Mean salary =/= 45;Ha: Mean salary =/= 45;Note when performing a one sample test with ANOVA, the second variable (Ho) is listed as the same value for every corresponding value in the data set.;t-Test: Two-Sample Assuming Unequal Variances;t-Test: Two-Sample Assuming Unequal Variances;Since the Ho variable has Var = 0, variances are unequal, this test defaults to 1 sample t in this situation;Male;Ho;Female;Ho;Mean;52;45;Mean;38;45;Variance;316;0;Variance;334.66667;0;Observations;25;25;Observations;25;25;Hypothesized Mean Difference;0;Hypothesized Mean Difference 0;df;24;df;24;t Stat;1.9689038266;t Stat;-1.913206;P(T<=t) one-tail;0.0303078503;P(T<=t) one-tail;0.0338621;t Critical one-tail;1.7108820799;t Critical one-tail;1.7108821;P(T<=t) two-tail;0.0606157006;P(T<=t) two-tail;0.0677242;t Critical two-tail;2.0638985616;t Critical two-tail;2.0638986;Conclusion: Do not reject Ho;Conclusion: Do not reject Ho;Interpretation: (include comments on why the conclusion was made, what the conclusion means about pay levels in English, what the conclusions mean for our question about equal pay.);2;Based on our sample results, perform a 2-sample t-test to see if the population male and female salaries could be equal to each other.;Include hypothesis pair of claims, and intepretation of result;3;Based on our sample results, can the male and female compas in the population be equal to each other? (Another 2-sample t-test.);Include hypothesis pair of claims, and intepretation of result;4;What other information about our variables would you like to know to answer the question about salary equality between the genders? Why - how do these variables influce pay?;5;If the salary and compa mean tests in questions 3 and 4 provide different results about male and female salary equality;which would be more appropriate to use in answering the question about salary equity? Why?;What are your conclusions about the tests performed to determine if equal pay exists between the genders at this point?


Paper#19767 | Written in 18-Jul-2015

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