It is common knowledge that a fair coin lands heads up 50 percent of the time and tails up 50 percent of the time. For fair coins, a probability of 0 is assigned to the coin landing on its edge. But what if several coins were glued together? A teacher claims that if 10 pennies were glued together and flipped many times, the penny stack would land on heads 25 percent of the time, tails 25 percent of the time, and on its edge 50 percent of the time. To investigate this claim, a student glues 10 pennies together and flips the stack 200 times. The student would like to know if there is convincing evidence that the distribution differs from what the teacher claimed. What are the appropriate hypotheses?

Question

Revolt · Accepted Answer

cap h sub 0 : The distribution of flips is  25 percent  heads,  25 percent  tails, and  50 percent  edge.  
 cap h sub A : The distribution of flips is not  25 percent  heads,  25 percent  tails, and  50 percent  edge.

Preparing to Conduct a Chi-Square Test for Goodness of Fit - Quiz Quiz

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