The average salary in US is \$25,000. Determine if the average salary of the participants in practice data set 2 is significantly greater than this value. Just use a two-tailed hypothesis. Write a statement of results.

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1. The average salary in US is \$25,000. Determine if the average salary of the participants in practice data set 2 is significantly greater than this value. Just use a two-tailed hypothesis. Write a statement of results.

2. Use practice data set 1. We believe that young individuals have lower math skills than older individuals. We would test this hypothesis by comparing participants 25 or younger (the young group) with participants 26 or older (the old group). Write a statement of results.

3. Using practice data set 3, determine if the anxiety level of participants changed between AnxPre and Anx1hr (regardless of which treatment they received). Write a statement of results.

4. Find an empirical article that uses t tests. Read the article and write a summary by focusing on the outline below. Hardcopy of this article.

a) The null and alternative hypo

b) The independent and dependent variable

c) Why or why not you think t test was appropriate

d) Whether the author(s) check the assumptions

e) The adequacy of the conclusions drawn and whether or not you agree with these conclusions