One hundred draws will be made at random without replacement from a large box of numbered tickets. there are two options:
i) to win $1 if the sum of the draws is bigger than 710.
ii) to win $1 if the average of the draws is bigger than7.1
which is better? or are they the same? explain.

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.