A company that makes cola drinks states that the mean caffeine content per 12-ou

Question

A company that makes cola drinks states that the mean caffeine content per 12-ounce bottle of cola is 35 miligrams. You want to test this clam Dung your lests, you nd that a random sample of thirty 12-ounce bottles of cola has a mean caffeine content of 35.7 milligrams. Assume the population is normally distrbuted and the population standard devaton is 6.1 milligrams At 0.06, can you reject the company's dam? Complete parts (a) through (e) (a) Identity Ho and Ha Choose the correct answer below. A. Ho-p235 O c. How 35 Ha:

Explanation / Answer

The statistical software output for this problem is:

One sample Z summary hypothesis test:
: Mean of population
H0 : = 35
HA : 35
Standard deviation = 6.1

Hypothesis test results:

Hence,

a) Option F is correct.

b) Option B; + 1.88

Rejection Region: Option C is correct.

c) z = 0.63

d) Option A is correct.

e) is not; reject; is equal to; 35

Mean n Sample Mean Std. Err. Z-Stat P-value 30 35.7 1.1137025 0.62853408 0.5297

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