Refer to Exercises 5.6, 5.24, and 5.50. Suppose that a radioactive particle is randomly located in a square with sides of unit length. A reasonable model for the joint density function for Y1 and Y2 is f (y1, y2) = $ 1, 0 y1 1, 0 y2 1, 0, elsewhere. a What is E(Y1 Y2)? b What is E(Y1Y2)? c What is E(Y 2 1 + Y 2 2 )? d What is V(Y1Y2)?

STAT 2004 WEEK 14 REVIEW: T-test Use a T-test when sigma is unknown. Use cutoffs to test, not p-values. HYPOTHESIS TESTING RATIONALE Make an assumption. Is what you observed likely or unlikely Compare what you observe to what you expect. CHI-SQUARE TEST How different is what we observed...