Refer to Exercise 2.

a. Confirm that the expected counts are large enough to use a chisquare distribution to calculate the P-value. What degrees of freedom should you use?

b. Use Table C to find the P-value. Then use your calculator’s χ² cdf command.
c. What conclusion would you draw about whether or not the roulette wheel is operating correctly?

Exercise 2.

Casinos are required to verify that their games operate as advertised. American roulette wheels have 38 slots—18 red, 18 black, and 2 green. In one casino, managers record data from a random sample of 200 spins of one of their American roulette wheels. The table displays the results.

Transcribed Image Text:

Color Red Black Green Count 85 99 16