1. Identify sample mean and sample standard deviation found in Phase I. Using your original list of data from Part I, find the 90%, 95% and 99% confidence intervals for the true mean.
2. State/create a claim just by utilizing the charts provided (what is being tested).
3. Complete a hypothesis test. Show the conclusion through all 3 methods: traditional (test statistic), p-value and confidence interval. Be sure to include the null and alternative hypotheses along with the p-value and value of the test statistic.
4. Using journals, scholarly websites, magazines, etc find an article related to your study. Identify the source and/or website address for the instructor to read.
5. Write a short summary relating this source with your own study conclusions.

*If question(s) 4 and 5 cannot be worked on, do not worry about them (skip them).

SHOE SIZE HEIGHT 11 180.3 9 175.3 11 184.8 10 177.8 10 182.3 13 185.4 11 180.3 10.5 175.3 9.5 177.8 11 185.4 11 190.5 12 195 10 175.3 10.5 180.3 9 172.7 12.5 182.9 11 189.2 11.5 185.4 14 193.7 7 165.1 9 166.4 10 177.8 8 167.6 9 168.3 8.5 165.7 8 165.1 11 165.1 8 165.1 9.5 152.4 8.5 162.6 9 179.1 9 175.9 8.5 166.4 7 167.6 9 162.6 8 167.6 8 165.1 10 172.7 7.5 157.5 10 167.6

Summary statistics (Phase I):

Column	n	Mean	Variance	Std. dev.	Std. err.	Median	Range	Min	Max	Q1	Q3
Shoe Size	40	9.75	2.5897436	1.609268	0.25444762	9.75	7	7	14	8.5	11

Sample Mean: 9.75 / Sample standard deviation: 1.609268

90% confidence interval results:

Mean	Sample Mean	Std. Err.	DF	L. Limit	U. Limit
	9.75	0.25444761	39	9.3212875	10.178712

95% confidence interval results:

Mean	Sample Mean	Std. Err.	DF	L. Limit	U. Limit
	9.75	0.25444761	39	9.2353311	10.264669

99% confidence interval results:

Mean	Sample Mean	Std. Err.	DF	L. Limit	U. Limit
	9.75	0.25444761	39	9.060978	10.439022