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Frequentist Inference - Confidence intervals

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One question we might have is if the distribution of graduate and undergraduate degrees independent of the grade the employee?
(Note: this is the same as asking if the degrees are distributed the same way.)

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Computation of confidence intervals and chi-square test.

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One question we might have is if the distribution of graduate and undergraduate degrees independent of the grade the employee?

Based on the analysis of our sample data (shown below), what is your answer?
Ho: The populaton correlation between grade and degree is 0.
Ha: The population correlation between grade and degree is > 0

1. In EXCEL we got: =0.96 and from the table we heve: =0.83 in both cases (male and female)
Since , we Reject Null hypothesis.
2. From EXCEL we got the ...

Solution provided by:
Chris Busu, PhD (IP)
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  • BSc, University of Bucharest
  • MSc, Ovidius
  • MSc, Stony Brook
  • PhD (IP), Stony Brook
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