Question

Offered Price $20.00

Week 2 Testing means with the t-test

Question # 00011790
Subject: Statistics
Due on: 04/30/2014
Posted On: 04/08/2014 05:02 PM

Rating:
4.1/5
Expert tutors with experiences and qualities
Posted By
Best Tutors for school students, college students
Questions:
996
Tutorials:
955
Feedback Score:

Purchase it
Report this Question as Inappropriate
Question
Week 2 Testing means with the t-test <
Note: use right click on row numbers to insert rows to perform analysis below any question>
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 334.6666667 0
Observations 25 25 Observations 25 25
Hypothesized Mean Difference 0 Hypothesized Mean Difference 0
df 24 df 24
t Stat 1.968903827 t Stat -1.913206357
P(T<=t) one-tail 0.03030785 P(T<=t) one-tail 0.033862118
t Critical one-tail 1.71088208 t Critical one-tail 1.71088208
P(T<=t) two-tail 0.060615701 P(T<=t) two-tail 0.067724237
t Critical two-tail 2.063898562 t Critical two-tail 2.063898562
Conclusion: Do not reject Ho; mean equals 45 Conclusion: Do not reject Ho; mean equals 45

Interpretation:

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.

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.)

4 What other information would you like to know to answer the question about salary equity between the genders? Why?

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 equal pay at this point?
Tutorials for this Question
Available for
$20.00

Week 2 Testing means with the t-test

Tutorial # 00011364
Posted On: 04/08/2014 05:03 PM
Posted By:
Best Tutors for school students, college students msmonopoly
Expert tutors with experiences and qualities
Questions:
996
Tutorials:
955
Feedback Score:
Report this Tutorial as Inappropriate
Tutorial Preview …means xxxx…
Attachments
Answer_equal_pay_student_rev_4_3__7_2.xls (129.5 KB)
Purchase this Tutorial @ $20.00 *
* - Additional Paypal / Transaction Handling Fee (3.9% of Tutorial price + $0.30) applicable
List of Main Subjects
Accounting
Anthropology
Architecture
Art
Asian Studies
Astronomy
Biology
Business
Chemistry
Communications
Computer Science
Economics
Education
Engineering
English
Finance
Foreign Languages
Gender Studies
General Questions
Geography
Geology
Health Care
History
Kindergarten
Law
Linguistics
Literary Studies
Marketing
Mathematics
Music
Nursing
Performing Arts
Philosophy
Physics
Political Science
Psychology
Religious Studies
Sociology
Statistics
Urban Planning and Policy
View all subjects...
Loading...