11.69 [EX11-01]

a. Does the sample show a distribution that is significantly different from the distribution shown in the “Putting out the fire”

graph (p. 619)? Use   0.05.

b. Write a paragraph (50 words) describing why the statistical method used in part a is appropriate for this set of data.

c. Write a paragraph (50 words) describing the meaning of the assumptions and the results of the statistical procedure chosen in part b.