Just (un)lucky? One of the students in the introductory Statistics class in Exercise 19 claims to have tossed her coin 200 times and found only 42% heads. What do you think of this claim? Explain 19. ...

Just (un)lucky? One of the students in the introductory Statistics class in Exercise 19 claims to have tossed her coin 200 times and found only 42% heads. What do you think of this claim? Explain

19.  More coins Suppose the class in Exercise 17 repeats the coin-tossing experiment.

a) The students toss the coins 25 times each. Use the 68–95–99.7 Rule to describe the sampling distribution model.

b) Confirm that you can use a Normal model here.

c) They increase the number of tosses to 64 each. Draw and label the appropriate sampling distribution model. Check the appropriate conditions to justify your model.

d) Explain how the sampling distribution model changes as the number of tosses increases.