Question: Refer to the information found in the article entitled 21^st Birthday from the Penn State Pulse (January, 2001). This was previously used in Lesson 9.

a. What type of data is summarized in this article? Measurement or categorical

b. What population value should be used with this data? population mean or population proportion

c. At the bottom of the article you find the statement “* statistically significant at the .05 level.” This statement implies that the p-value is ≤ .05. Find the “*”on the first page of the article. Precisely what two results are statistically significant? State these results in terms of the appropriate population value (ie: population mean or population proportion).

Source: Penn State Pulse, 21^st Birthday, January 2001, http://www.sa.psu.edu/sara/alphapulse.shtml