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A is the data set {100, 200, 300, 400, 500}.  Make up another data set, B, such that B has the same mean as A, has exactly five numbers as A does, and has a smaller standard deviation than A.  Write your answer in the box below. You do not have to show your work for this problem. 

Suppose that scores of a certain standardized test is normally distributed with a mean of 70 and a standard deviation of 7. Find the probability that a random score is less than 77. Use the table below. Use a decimal number (for instance, if the probability is 60%, use 0.6).  Write ONLY your answer in the response box. Show your work which justifies your answer ON YOUR PAPER.

Suppose you are financing $500,000 to buy a house. The amount of your monthly payment will be less with a 15-year mortgage compared with a 30-year mortgage. 

In compound interest, the dollar amount of interest grows year after year. 

A company manufactures tens of thousands of tennis balls every day. A quality control person inspects every 100th ball to be sure that the dimensions are correct. What type of sampling is this?

A research study is conducted to test the danger of teenage vaping. A group of 1000 teenagers who vape (out of their own will) are tested for their blood pressure and overall health; the results are compared with those of 1000 teenagers who do not vape. No placebos are used in this study.  What type of research study is this?

Explain how you can obtain the Golden Ratio using the Fibonacci Sequence. You do not have to write anything in your “SYW (Show Your Work)” paper. Be sure to answer the question according to what was covered in this course. Use your own words. DO not use any mathematical symbols.   

You have decided to buy a new car by financing $15,000. Your payment will be $280 every month for five years. Over the next five years, how much interest will you be paying?  Write ONLY your answer in the response box. Show your work which justifies your answer ON YOUR PAPER.

According to Ch. 8 of the textbook, which statement below is correct concerning apportionment methods?

Suppose your monthly payment on a 30-year mortgage is $2100. Your total payment over the 30-year period  _____________