Question

# Test the Hypotheses Below Null Hypothesis: Mean Student Debt in 2011 is equal to Mean Student...

 Test the Hypotheses Below Null Hypothesis: Mean Student Debt in 2011 is equal to Mean Student Debt in 2007 Alternative Hypothesis: Mean Student Debt in 2011 is not equal to Mean Student Debt in 2007 Alpha Level = 0.05
 t-Test: Two-Sample Assuming Equal Variances Variable 1 Variable 2 Mean 3925.76 2876.82 Variance 222129.8188 140278.3547 Observations 50 50 Pooled Variance 181204.0867 Hypothesized Mean Difference 0 df 98 t Stat 12.32073615 P(T<=t) one-tail 6.27467E-22 t Critical one-tail 1.660551217 P(T<=t) two-tail 1.25493E-21 t Critical two-tail 1.984467455
1. Run the appropriate t-test (assuming either equal or unequal variances based on your conclusion in 1e above) using an alpha level of 0.05 to determine if there is a difference between the debt amounts in the two years and answer the following questions.
1. What is the Null and Alterative Hypotheses for the T-Test for the differences between debt amounts in the two years?

Null Hypothesis:

Alterative Hypothesis:
2. Which of the two years has the higher mean?

3. Is this a one-tailed or two-tailed test?  Explain?

1. What is the t Test Statistics?  What is the p-value?
2. Based on the statistical output, would you conclude that means are equal or not equal?  Why?

#### Earn Coins

Coins can be redeemed for fabulous gifts.