HW 4                Due Oct. 29, 1999

Å.  Here are some data from a study that asked people to guess the calorie content of certain foods and then compared the guesses to the actual calorie content.  (The data are also available on ActivStat, and come from David Moore's books The Practice of Statistics.)   Describe how people's guesses correspond to reality.  Note anything that you find interesting, and feel free to make any conjectures that seem to be supported by the data.  Back up your arguments and descriptions with any graphical or numerical techniques you think appropriate.  (Note: the data are tab-deliminated and ready to be loaded into ActivStats.  Choose the "Use these variable names" option.)

B.  STM, p. 157:
    1,4,6,

C.
1. Find the theoretical probability of having at least 1 boy in a family with 10 children.
2. Write out the 5 steps for a simulation to find the same probability.  Use N=25 trials.

D.STM: p. 198, 6 and 7.  Be sure to write out all 5 steps for your simulation.
E. STM: p. 572: 5-9
F. STM: p. 735: 6-8  NOTE: ON Number 6, express P(A|B) and P(B|A) in words.