Hello again =) I have yet another question but I thought I would keep it in the same thread.
Question: A quality-control analyst wants to estimate the proportion of imperfect jeans in a large warehouse. The analyst plans to select a random sample of 500 pairs of jeans and note the proportion of imperfect pairs. If the actual proportion in the entire warehouse is 0.35, what is the probability that the sample proportion will deviate from the population proportion by more than 0.05?
Ok..I think this is a trick question somehow, and the sample size is so large (30>) that the central limit theorem applies. But other than that I'm pretty lost.
What formula do you need to use? Thank you.
Question: A quality-control analyst wants to estimate the proportion of imperfect jeans in a large warehouse. The analyst plans to select a random sample of 500 pairs of jeans and note the proportion of imperfect pairs. If the actual proportion in the entire warehouse is 0.35, what is the probability that the sample proportion will deviate from the population proportion by more than 0.05?
Ok..I think this is a trick question somehow, and the sample size is so large (30>) that the central limit theorem applies. But other than that I'm pretty lost.
What formula do you need to use? Thank you.
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