A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
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
anonymous
 one year ago
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

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0step by step help plz

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Loser66 can you help me plz

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Loser66 am i going in the right direction?

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0Honestly, I don't know. @jtvatsim

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Loser66 thanks for being honest. hope @jtvatsim can help

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.0Hmm... looking at it...

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0@jtvatsim you get 100, right? which is not the answer the Asker wants, right? By definition of mean values, it is 500/5 =100, But they interpret the problem on the way I don't get!!

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.0I'm building an excel table right now to speed up the calculations... I'll let you know what I get. The question is phrased a little unclearly.

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0If we work with the hours of A and B, then mean is 100 which is not the answer for both Ryan and Maya But if we work on the hours itself like (6+7+8+9+10)/ 5 =8 But it is .....so...... dumb to interpret the problem that way.hahaha..... I feel so dumb now.

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.0I'm trying to wrap my head around it still, I'm thinking we need to multiply the hours by the number of people who worked those hours... Not sure... still thinking...

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0ok, let's get help. Let me tag my master. @oldrin.bataku

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0can it be 6(60)+7(90)+8(145)+9(150)+10(55)

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0then? divided by what??

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0and why do you just pick sample A to work out? why not B?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0starting from the top..just guessing

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.0I actually like that line of thought. It seems reasonable... for the following reasons:

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.0We are trying to figure out the "Average number of hours worked". The best way to do this is to first determine the "Total number of hours worked" and then divide this by the number of people we have. This will give us the average number of hours worked for one person.

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.0Now, Loser66 raises a good point. Do we calculated the average for each sample separately? Or should we combine them? I argue that we should combine them, but either way, it seems like you will get similar answers.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if we combined them we won't determined who is correct

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.0Perhaps, I guess that is assuming that Ryan uses one sample and Malia uses the other. I feel that they are both looking at the same data. But since you have probably worked on other problems in the class, you might have a better feel for what the assignments ask for.

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.0Either way, we can gather the data and then decide what we will do with it.

jtvatsim
 one year ago
Best ResponseYou've already chosen the best response.0Sample A Data: Total hours worked: 4050 hrs Total people sampled: 500 people. Sample B Data: Total hours worked: 4055 hrs Total people sampled: 500 people

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0they check the same data

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0which is both samples; I think the purpose of the question is that you might not be able to just add them all together as a single sample since there's no reason to believe the random samples are not correlated in some unseen way (through overlapping, sampling some of the same people)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@oldrin.bataku because both worked out to be 8.1 therefore Ryan is correct?

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0@steffie84 what is your grade? which course it is?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Loser66 7th am doing virtual school

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0WWWWWWWWWWat?? 7th grade!! shame on me!!! I don't know how to solve the 7th grade problem. hehehe.....

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Loser66 haha no shame there
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.