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Stating the Research and Null Hypotheses.    What you are trying to prove is called the research...

Stating the Research and Null Hypotheses.   

What you are trying to prove is called the research hypothesis, or alternative hypothesis, and is symbolized by H1 (some books write it as Ha ).    Research hypotheses are always expressed in terms of population parameters because we are interested in making statements about a population, based on sample statistics. The null hypothesis, or H0, contradicts the research hypothesis, and is usually a statement of no difference.

In each of the following situations, state an appropriate null hypothesis Hoand alternative hypothesis H1. Be sure to state it in terms of population parameters.

a) An education researcher believes that among college students there is a correlation between grade point average (GPA) and self-esteem data.

b) The Governer believes that tax refunds will create jobs.

math   Statistics-And-Probability   
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Answer #1

Ans:

a)

H0: There is no correlation between grade point average (GPA) and self-esteem data.

Ha:There is a correlation between grade point average (GPA) and self-esteem data.

b)

H0: Number of jobs created is not related to tax refunds.

Ha: Number of jobs created is related to tax refunds.

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