Roulette Refer to Exercises 2 and 4.

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

(b) Sketch a graph like Figure 11.4 (page 685) that shows the P-value.

(c) Use Table C to find the P-value. Then use your calculator’s c2cdf command.

(d) What conclusion would you draw about whether or not the roulette wheel is operating correctly? Justify your answer.