Question

Answer the following questions about the table.

Drink Calories Sodium Potassium Cost

Gatorade 60 110 25 $1.29

Powerade 68 77 32 $1.19

All Sport 75 55 55 $0.89

10-K 63 55 35 $0.79

Exceed 69 50 44 $1.59

1st Ade 58 58 25 $1.09

Hydra Fuel 85 23 50 $1.89

a/ Compute the mean cost per container, and create a 95% confidence interval about that mean.

b/ Do all the costs per container fall inside the confidence interval? If not, which ones do not?

c/ How many degrees of freedom are there?

d/ If cost is a major factor influencing your decision, would you consider cost per container of cost per serving?

Answer 1