Question

question 15 1 pts ch 17* researchers investigated the effectiveness of oral zinc, as compared to a placebo, in reducing the duration of the common cold when taken within 24 hours of the onset of symptoms. the researchers found those taking oral zinc had a statistically_significantly shorter duration than those taking the placebo. this means that the value of the test statistic, which is the mean reduction in duration of the cold, is large. true false

Explanation:

In hypothesis - testing, statistical significance often implies a large enough test - statistic value to reject the null hypothesis. Here, the test - statistic is the mean reduction in cold duration. A statistically significant result for oral zinc compared to placebo means the value of this test - statistic is large.

Answer:

True