The amounts of caffeine in a regular (small) serving of assorted beverages are listed below. If someone wants to limit caffeine intake, does it really matter which beverage she or he chooses? Is there a difference in caffeine content at α = 0.05?

Perform these steps.
a. State the hypotheses and identify the claim.
b. Find the critical value.
c. Compute the test value.
d. Make the decision.
e. Summarize the results.
Use the traditional method of hypothesis testing unless otherwise specified.

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Teas Coffees 70 40 30 25 40 120 80 160 90 140 Colas 35 48 43 42