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- muscrat123

Sue wants to know how many families in her small neighborhood of 50 homes would volunteer to help at a neighborhood animal shelter. She put all the addresses in a bag and drew a random sample of 25 addresses. She then asked those families if they would volunteer to help at the shelter. She found that 18% of the families would volunteer to help at the shelter. She claims that 18% of the neighborhood families would be expected to help at the animal shelter. Is this a valid inference?
Yes, this is a valid inference because the 25 families speak for the whole neighborhood
Yes, this is a vali

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- muscrat123

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- muscrat123

Is this a valid inference?
Yes, this is a valid inference because the 25 families speak for the whole neighborhood
Yes, this is a valid inference because she took a random sample of the neighborhood
No, this is not a valid inference because she only asked 25 families
No, this is not a valid inference because she did not take a random sample of the neighborhood

- muscrat123

- muscrat123

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- jim_thompson5910

what are your thoughts on this?

- muscrat123

i think it is c

- jim_thompson5910

so you think she should have asked more families?

- muscrat123

yes

- jim_thompson5910

but 25 families is 50% of the population
25/50 = 0.5
so I'd say she has a big enough sample size

- jim_thompson5910

the fact that it's random is also a good sign too

- muscrat123

wait, now i think it would be b

- jim_thompson5910

yeah it's valid because she randomly selected families

- muscrat123

thank you!

- jim_thompson5910

no problem

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