Say that you know that the average amount of time that an adult can concentrate
Question # 00265066
Posted By:
Updated on: 04/28/2016 02:41 PM Due on: 05/28/2016

20) Say that you know that the average amount of time that an adult can concentrate on reading a text is 30 minutes, and you want to test a manufacturer's claim to see if a new protein drink can make a significant difference in people's concentration. Therefore, you collect a sample of 9 subjects, give them each the protein drink, and discover that your sample has an average concentration time of 26 minutes, with a standard deviation of 6 minutes.
Did the protein drink make a significant difference in their concentration time?
Test at (symbol for level of significance) = .05
a. Reject the Null
b. Fail to Reject the Null

-
Rating:
5/
Solution: Say that you know that the average amount of time that an adult can concentrate