Statistics problems / questions.  link to background information. [30 points]

1.  describe the situation to use the following statistical tests / calculation:  [7 points]

• independent sample t-test
• correlated sample t-test
• 1-anova
• 2-anova
• regression analysis
• Tukey's test
• p-value

2.  determine the mean, SD, & SEM of the following data:  5, 7, 9, 12, 15, [show your calculations & formula; 6 points]

3.  Identify any outlier in the following data set:  5, 7, 8, 10, 20.  justify your answer by referring to the statistical test used to analyze the data, show any relevalent calculations, and its implications.  [2 points]

problems 4 - 6:  Do not include a printout of the statistical analysis, but clearly state the statistical test used, its p-value, and the implications of the p-value in regards to comparing the various experimental conditions.

4.  is there a statistically significant difference between the control versus experimental groups in the below table - compare using the independent sample & correlated sample t-test.   [5 points]

control	experimental
5	7
7	8
4	6
9	12

5.  is there a statistically significant difference between the various experimental conditions in the below table - use the appropriate statistical test to analyze the following hypothetical data.  [5 points]

experimental condition	systolic blood pressure
no drug	90 100 120 100
+ verapamil	110 80 70 100
+ isoproterenol	130 140 120

6.  is there a statistically significant difference between the various experimental conditions in the below table - use the appropriate statistical test to analyze the following hypothetical data.   [5 points]

data table:  mass of plant (grams) under different experimental conditions.

	little sunlight	a lot of sunlight
little water	10 11 12	15 17 20
a lot of water	9 11 10	17 20 21