Question

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

Answer 1

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

Answer 2

@ali2x2

Answer 3

@jim_thompson5910

Answer 4

what are your thoughts on this?

Answer 5

i think it is c

Answer 6

so you think she should have asked more families?

Answer 7

yes

Answer 8

but 25 families is 50% of the population

25/50 = 0.5

so I'd say she has a big enough sample size

Answer 9

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

Answer 10

wait, now i think it would be b

Answer 11

yeah it's valid because she randomly selected families

Answer 12

thank you!

Answer 13

no problem