For Exercises follow these steps.

a. State the hypotheses and identify the claim.
b. Find the critical value(s).
c. Compute the test value.
d. Make the decision.
e. Summarize the results.
Use the traditional method of hypothesis testing unless otherwise specified. Assume all assumptions have been met.

A starting pitcher for a National League contender in Major League Baseball has the following pitch arsenal: 62% fastball, 18% curve, 17% slider, and 3% change-up. In a recent game, he threw the following number of pitches. Is there sufficient evidence at α= 0.05 that he deviated from his usual pitch count?

Fastball 56     curve 30     slider 20     change-up 5