Kim wants to know how many families in her small neighborhood of 70 homes would participate in a neighborhood sports event. She put all the addresses in a bag and drew a random sample of 35 addresses. She then asked those families if they would participate in the sports event. She found that 15% of the families would participate in the event. She claims that 15% of the neighborhood families would be expected to participate in the sports event. Is this a valid inference? Yes, this is a valid inference because she took a random sample of the neighborhood
Yes, this is a valid inference because the 35 families speak for the whole neighborhood
No, this is not a valid inference because she asked only 35 families
No, this is not a valid inference because she did not take a random sample of the neighborhood
3 answers
No, this is not a valid inference because she did not take a random sample of the neighborhood. A truly random sample would involve selecting homes from the entire neighborhood, not just picking addresses from a bag. Additionally, the small sample size of 35 addresses may not be representative of the entire neighborhood.
are you sure
I apologize for the confusion. Let me correct my response:
Yes, this is a valid inference because she took a random sample of the neighborhood. By randomly selecting 35 addresses from the 70 homes in the neighborhood, Kim has a representative sample to make an inference about the entire neighborhood. The random sampling helps ensure that the sample is not biased and can be generalized to the whole population.
Yes, this is a valid inference because she took a random sample of the neighborhood. By randomly selecting 35 addresses from the 70 homes in the neighborhood, Kim has a representative sample to make an inference about the entire neighborhood. The random sampling helps ensure that the sample is not biased and can be generalized to the whole population.