From random sample, here is mean and SD of NFL total salary in 2009. Sample size is 201.

 

1) Is the sample size adequate to find a total salary? 

2) Is the sampling method appropriate to find total salary in 2009?
3) Offer some useful implications for players, agents, and teams?

4) Provide general conclusion and other comments that you think are appropriate?

 

Mean	1,883,443
Standard Deviation	2,626,814

 

Calculating confidence interval in "Distributions"

Gator Boosters Inc. (https://www.gatorboosters.org/)
Suppose you are recently hired as Director of Development at Gator Boosters Inc. Mr. Pharr and Mr. Brown, executive directors, request you to collect information to draw a picture of current donors' demographic profile, their contribution levels, and future contribution intention. For this request, you decide to conduct an online survey. Out of approximately 15,000 athletic department donors (population), you send an e-mail invitation to your online questionnaire to 7,500 donors (by selecting every other donor on the list of 15,000). 7,500 is your sampling frame. A total of 817 donors (samples) participated in the survey. 

 

Current Donation level

		Means	Standard Deviation	Confidence intervals 95%
	Average Lifetime Campaign	30,822	45,338	34,428.81	27,215.16
	Average annual contribution	3,107	45,461	6,723.57	(509.70)

 

1)  Discuss and provide analysis that you think are appropriate for Gator Boosters, current donors' demographic profile, their contribution levels, and future contribution intention .
 

2) Offer some useful implications for the executive directors.