Determine the test of significance (t-test or z-test).

Sketch a scatter plot for the data.  You may either attach your sketch by hand our your output from StatCrunch.

State the null and alternative hypotheses. Write your answers as “H_0: answer” and “H_a: answer”

The correlation coefficient is r =0.504

How large of a sample of students must be selected if we want to be 95% confident that our estimate is within 2.5 points of the population mean test score?

  6. Look at the map of England that was settled by the Vikings. (5) Click on the blue button to open the image       Imagine you are a Viking settling in England in the 8th Century. Write a letter to your mother telling her about your new home.        You should mention: 1. Where you settled (1) 2. Why you settled there (2) 3. What life is like in your new home (2)        

7.2.  Queen Mary of Scots was Henry’s older sister (1)  

9.5. When did WW2 end? (1)

9.4. How was South Africa involved in the war? (1)

7.5. The Spanish Armada was defeated by Queen Elizabeth. (1)