Behavior changes because subjects know they are being observed. This is called:

Bonus: You may only answer ONE of the following options. If you answer more than 1, even if you get them all correct, you will still receive 0 points because you were only to pick ONE. Tuesday, March 17th is St. Patrick’s Day. A variety of bonus questions on that topic are available for you to choose ONE from, below. You MUST indicate whether you are choosing to answer A, B, C, D, E, F, or G by using the correct letter for your answer.   A)  St. Patrick used the shamrock (3-leaf clover) to teach the pagan Irish about what Christian concept? B) According to myth, what animal did St. Patrick drive out of Ireland? C) The largest St. Patrick’s Day parade in the world is held in what city and country? D) What U.S. city dyes its river green on St. Patrick’s Day? E) True or false? Leprechauns can only be male, not female. F) In 1845, the failure of what food crop caused nearly 250 million Irish people to migrate to the U.S.? G) What happens if you don’t wear something green on St. Patrick’s Day?

A police response time has a z-score of 0.81. Using the z-table, what is the probability that the response time is longer than this value? z-table 

A sample mean is 10. The population mean is 12 and the population standard deviation is 4. If the sample size is 16, calculate the z-score for the sample mean.

Which of the following is an example of descriptive statistics?

A parameter is a numerical value that describes a sample.

Over which range is the supply curve in this figure the least elastic? 3(3).png

Please show your work.If the price per pair of shoes increases from $20 to $25, the quantity demanded decreases from 100 pairs to 70 pairs. Find the price elasticity of demand. In order to increase revenue, what should you do in terms of price?

The code word for today is:

Consider a small town with only three families, the Johnson family, the Marshall family, and the Walker family. The town does not currently have any streetlights so it is very dark at night. The three families are considering putting in streetlights on Main Street and are trying to determine how many lights to install. The table below shows each family’s willingness to pay for each streetlight. question.png      Suppose the cost to install each streetlight is $450 and the families have agreed to split the cost of the streetlights equally. If the families vote to determine the number of streetlights to install, basing their decision solely on their own willingness to pay (and trying to maximize their own surplus), what is the greatest number of streetlights for which the majority of families would vote “yes?