For Exercises follow 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.
Use the traditional method of hypothesis testing unless otherwise specified.

The 2010 Census indicated the following percentages for means of commuting to work for workers over 15 years of age.

A random sample of workers found that 320 drove alone, 100 carpooled, 30 used public transportation, 20 walked, 10 used other forms of transportation, and 20 worked at home. Is there sufficient evidence to conclude that the proportions of workers using each type of transportation differ from those in the Census report? Use α= 0.05.

Transcribed Image Text:

Alone Carpooling Public Walked Other Worked at home 76.6 9.7 4.9 2.8 1.7 4.3