I INTRODUCTION
My group 1 designed a survey to learn about whether people drink caffeinated beverages and whatkinds and how much typically. We surveyed random American Adults.Our sample was a convienience sample as our responses were voluntary and found in our immediate environments.Te total response for our survey was one hundred and sixty.
We asked the following questions:
1. Do you drink some kind of energy or caffeinated beverage?
2. Which one of the below beverages do you consume the most? a) coffee
b) tea
c) eergy drink
d) pop/soda
e) other
3. On an average day, how many of these do you drink?
4. On average, how many days a week do you drink them? (07)
II CATEGORICAL VARIABLE
Yes/No Survey Question: Do you drink some kind of caffeinated beverage?
A confidence Interval for the proportion of people that DO is shown below.
One sample proportion confidence interval:Outcomes in : Do you drink caffeinated beverages Success : Y p : Proportion of successes Method: StandardWald 95% confidence interval results:

III LOOKING at a NUMERICAL VARIABLE
3. On an average day, how many of these do you drink?
Summary statistics:

Constructing a 95% Confidence Interval for this population mean, I used a T Interval because my sample size is greater than 30.
One sample proportion confidence interval:Outcomes in : Do you drink caffeinated beverages Success : Y p : Proportion of successes Method: StandardWald 95% confidence interval results:

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