What inferential statistics question might be answered by determining the number of computers in a sample of size 800 that need warranty service?
1) What is the probability that at least 10% of the computers in the sample need warranty service?
2) What is the average number of computers in the sample that need warranty service?
3) What is the standard deviation of the number of computers in the sample that need warranty service?
4) What is the confidence interval for the proportion of computers in the population that need warranty service?
