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Mathematics 8 Online
KittyGirl:

math help again Below are the data collected from two random samples of 500 American adults on the number of hours they spend doing leisure and sports activities per day (rounded to the nearest hour): Dan concludes that adults spend a mean of 3 hours each day doing leisure and sports activities. Bret thinks the mean is 4 hours. Who is correct—Dan or Bret? Explain your answer in two or three sentences. Make sure to use facts to support your answer.

KittyGirl:

KittyGirl:

@jhonyy9

jhonyy9:

you need maikng an average rate - than i explain to you correct assume the total number of adults from sample A and the total number of hours spent doing leisure and sport per day - so after this you need divide the number of adults by number of hours and the esult will be the right answer sure but sorry - the total number of adults is given in the text of your exercise is 500

jhonyy9:

so total there are 500 adults who spend total 15 hours in 5 days yes ?

jhonyy9:

do you understand me ?

KittyGirl:

Yeah I get it

jhonyy9:

1+2+3+4+5 = 15 so 15 hours in 5 days

jhonyy9:

15/5 = 3 hours in one day

jhonyy9:

now just you need chect it who is right

KittyGirl:

dan is correct

jhonyy9:

yes exactly do you understand the way ?

KittyGirl:

yup thanks!! ill post the next question in a minute

jhonyy9:

ok. how much are you again ?

KittyGirl:

how many questions? now there are just 2 left

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