Researh And Evaluation

both Sample Hypothesis Testing
Angelo Losardo, Antonio Griffin, Brian Godshall, Carla Naog, Delon Washington, Jennifer Neal, and John Casino
RES342
University of Phoenix
February 6, 2012
Lance Milner
Two Sample Hypothesis Testing
This research paper focuses on on the job(p) with samples through supposition leavening to describe detailed results amidst the differences in the annual income levels between male and egg-producing(prenominal) workers. The squad give formulate a numerical and verbal hypothesis statement in regard to wages and the gender of the employee. To catch a true result the five-step hypothesis analyseing will be performed on all of the data collected as well as showing the raw data indoors the research paper. After a decision is made the results of the test will be detailed and the findings from the testing techniques will be evaluated and compared to find the differences in the mean annual income of male and female workers.
Research Question
Do male workers have higher annual incomes then female workers?
Hypothesis Statement
Some people bespeak that the mean annual income, ?1 ($24,452) of women workers is little than or equal to the mean annual income ?2 ($36,493) of men workers. In a current study, a random sample of 47 women workers and 53 men workers were asked to report their mean annual income.




The population bar deviation for mean annual income of women workers and men workers are 12,313 and 18,273 respectively. It is withal known that both populations are approximately normally distributed. At the .05 level of significance, the team up will determine if there is adapted evidence to reject the claim that the mean annual income of women workers is less than or equal to the mean annual income of men workers. The team will perform a one-tailed test.
Five-Step Hypothesis Test
Hypothesis test of two populations or more than two populations (ANOVA)

Step 1: State the Hypothesis

H0: µ1 = µ2 (mean rates are the same)
µ1 = Females
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