Answer:
^^
Step-by-step explanation:
Answer: We support the null hypothesis.
Step-by-step explanation:
Given : The purpose of the study was to determine whether the mean weekly number of hours that Internet users in that age group spend online differs from the mean for Internet users in general which is 12.50 hours.
The set of hypothesis for the given claim :-

A 95% confidence interval for the mean weekly number of hours that Internet users in that age group spend online was calculated to be (11.439 , 12.577).
Since 12.50 contained in the 95% confidence interval (11.439 , 12.577).
Therefore, we support the null hypothesis.
So the final conclusion will be, we have evidence to support the claim that Internet users in that age group spend online differs from the mean for Internet users in general which is 12.50 hours.
Answer:
Rotation
Step-by-step explanation:
keyword: Turn!
The LCM is the smallest common multiple. To find this, list the multiples of each number
52: 52, 104, 156....
13: 13, 26, 39, 52.....
the smallest number that is a mutiple of both is 52.
so, the LCM of 13 and 52 is 52.
Hope this helps!
The answer is 14 m because you add the other 2 together to get the answer