Question

Caffeine in Tea Bags In a recent study, researchers found that the average amount of caffeine in tea bags is 26 mg. The standard deviation of the population is 3 mg. If a random sample of 45 newly manufactured tea bags has a mean of 24.8 mg of caffeine, can it be concluded that the new brand of tea bags contain less caffeine than the average found in the recent study? Use $\alpha = 0.10$, and use the $P$-value method with tables. Part 1 of 5 (a) State the hypotheses and identify the claim. $H_0: \mu = 26$ not claim $H_1: \mu < 26$ claim This hypothesis test is a one-tailed test. Part: 1 / 5 Part 2 of 5 (b) Compute the test value. Always round z score values to at least two decimal places. $z = $

          Caffeine in Tea Bags In a recent study, researchers found that the average amount of caffeine in tea bags is 26 mg. The standard deviation of the population
is 3 mg. If a random sample of 45 newly manufactured tea bags has a mean of 24.8 mg of caffeine, can it be concluded that the new brand of tea bags contain
less caffeine than the average found in the recent study? Use $\alpha = 0.10$, and use the $P$-value method with tables.
Part 1 of 5
(a) State the hypotheses and identify the claim.
$H_0: \mu = 26$ not claim
$H_1: \mu < 26$ claim
This hypothesis test is a one-tailed test.
Part: 1 / 5
Part 2 of 5
(b) Compute the test value. Always round z score values to at least two decimal places.
$z = $

Added by Amanda W.

Question

Please give Ace some feedback