Devise a null and alternative hypothesis, then perform a one sample z-test using alpha=0.05 if our class is taller or shorter than the average human in the United States. Graphically display your answer and statistically write up results. In addition, determine the effect size of this relationship and interpret. Notes:The average height of adults in the United States is 67.03.8 inches. (Note: this is a population SD)Calculate and interpret the effect size (use Cohen's d): Cohen's d = (Msample - population) ? ?)Devise a null and alternative hypothesis, then perform a t-test using alpha =0.05 if the students in our class that are born in warm weather months are taller or shorter than those born in cold weather months. Graphically display your answer and statistically write up results. In addition, determine the effect size of this relationship and interpret.Notes:Population SDs are unknown.Assume the northern hemisphere: Warm months = April, May, June, July, August, September Cold months = October, November, December, January, February, MarchUse Cohen's d effect size: Cohen's d = (M2 - M1) ? SDpooled) where SDpooled = ?((SD12 + SD22) ? 2)

[edit] Distance Foot Hand Months Birthday to Work Height Size Size d Enrolled Month (whole (whole (whole (whol miles) inches) inches) inches e and 1 April 70 10 7 logy : and 1 May 6 67 10 7 logy and 12 September 12 72 10 7 logy ss and 24 April 5 ement 68 11 7 : and 16 December 12 69 10 7 logy are 11 October 60 ement 62 8 6 e and 7 November 20 67 9 7 logy e and 4 April 20 70 10 7 logy e and 1 August 0 72 10 8 logy