Chapter 11.1, Problem 7E

For Exercises 5 through 18, perform these steps.

a. State the hypotheses and identify the claim.

b. Find the critical value.

c. Compute the test value.

d. Make the decision.

e. Summarize the results.

7. Extending the School Year A researcher surveyed 100 randomly selected teachers in a large school district and found that 46 wanted to extend the school year, 42 did not, and 12 had no opinion. At the 0.05 level of significance, is the distribution different from the national distribution where 45% wished to extend the school year, 47% did not want the school year extended, and 8% had no opinion?