Question on probability

Question on probability - statistics

Reference no: EM13102530

1. Give a variable that could be used to stratify the population for each of the following studies. List at least four subcategories for each variable.

a. A political party wants to conduct a poll prior to an election for the office of U.S. senator in Minnesota

b. A soft drink company wants to take a sample of soft drink purchases in an effort to estimate market share.

2. The average cost of a one bedroom apartment in a town is $550 per month. What is the probability of randomly selecting a sample of 50 one-bedroom apartments in this town and getting a sample mean of less than $530 if the population standard deviation is $100? Please show all work.

Reference no: EM13102530

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