MS 150 Statistics Fall 2000 Quiz Nine

Open book quiz!  Use the formulas, tables, and figures in your book.

The grade point average for the students at the national campus in the Spring of 2000 was 2.12.  A sample of 278 Pohnpeian female students had a grade point average of 1.99 with a sample standard deviation of 1.47.  At a significance level alpha of a = 0.05, is the Pohnpei female average statistically significantly lower than the overall average?

  1. What is Ho?
  2. What is H1?
  3. What is alpha?
  4. What is the critical value for that alpha?
  5. What is the standardized value of the data?
  6. Do we reject or fail to reject Ho?

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