A researcher is conducting a chi-square test for goodness of fit to evaluate preferences among three different designs for a new automobile. With a sample of n 5 30 the researcher obtains a chi-square statistic of x2 5 4.81. What is the appropriate statistical decision for this outcome?

a. Reject the null hypothesis with a 5 .05, but not with a 5 .01.

b. Reject the null hypothesis with either a 5 .05 or a 5 .01.

c. Fail to reject the null hypothesis with either a 5 .05 or a 5 .01.

d. There is not enough information to determine the appropriate decision.