Show complete solution and follow Test in Hypothesis 1. Ho : (describe Ho) there's no significant difference H1: My - H2 «0, (describe H1) there's a significant difference 2. Level of significance: 3. Type of Test: 4. Critical Value(s) 5. Test Statistic 6. Decision: 7. Conclusion PROBLEM Amstat News (December 2004) lists median salaries for associate professors of statistics at research institutions and at liberal arts and other institutions in the United States. Assume a sample of 200 associate professors from research institutions having an average salary of $70,750 per year with a standard deviation of $6000. Assume also a sample of 200 associate professors from other types of institutions having an average salary of $65,200 with a standard devi
Show complete solution and follow Test in Hypothesis
1. Ho : (describe Ho) there's no significant difference
H1: My - H2 «0, (describe H1) there's a significant difference
2. Level of significance:
3. Type of Test:
4. Critical Value(s)
5. Test Statistic
6. Decision:
7. Conclusion
PROBLEM
Amstat News (December 2004) lists median salaries for associate professors of statistics at research institutions and at liberal arts and other institutions in the United States. Assume a sample of 200 associate professors from research institutions having an average salary of $70,750 per year with a standard deviation of $6000. Assume also a sample of 200 associate professors from other types of institutions having an average salary of $65,200 with a standard deviation of $5000. Test the hypothesis that the mean salary for associate professors in research institutions is $2000 higher than for those in other institutions. Use a 0.05 level of significance.
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