Below are the data collected from two random samples of 500 American adults on the number of hours they work per day (rounded to

Question

4 years ago

9

Below are the data collected from two random samples of 500 American adults on the number of hours they work per day (rounded to

the nearest hour):
Ryan concludes that adults spend a mean of 8 hours working each day. Malia thinks the mean is 9 hours. Who is correct—Ryan or Malia? Explain your answer in two or three sentences.

Mathematics

2 answers:

katen-ka-za [31] · Answer 1 · 2021-11-22T18:58:37+03:00

katen-ka-za [31]4 years ago

6 0

The mean is just the arithmetic average...

Sample A=8.1

Sample B=8.11

Both Samples=8.105

So Ryan would be closer to being correct given either of or both samples.

kakasveta [241] · Answer 2 · 2021-11-22T21:07:44+03:00

kakasveta [241]4 years ago

5 0

Ryan is correct because if you were to add up all you numbers which is easier if you take (60*6)+(90*7) then 7+7+7 (90 times) then divide them you get 8. You could either take each set on their own or do them both together but you still get 8.