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):

Number of hours of work per day 6 7 8 9 10
Sample A: Number of adults 60 90 145 150 55
Sample B: Number of adults 70 80 140 145 65

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.

Question

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):


Number of hours of work per day	6	7	8	9	10
Sample A: Number of adults	60	90	145	150	55
Sample B: Number of adults	70	80	140	145	65


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.

nuccioreggie · Answer

@freckles @ganeshie8 @mathstudent55 @Nnesha @pooja195 @triciaal

anonymous · Answer

the average number of hours worked

out of 500 people in a sample:

6(60), 7(90), 8(145), 9(150), 10(55)

the total number of hours are defined as the sum of the terms

anonymous · Answer

So what is:

6(60) + 7(90) + 8(145) + 9(150) + 10(55)

nuccioreggie · Answer

so can you explain the answer all in one please

anonymous · Answer

so 4050/500 is the mean of sample A and the mean of sample B is 4055/500
the mean of the means is also going to be about 8.1
I cant verify this as correct, but i know who id go with