TABLE 12-9
Many companies use well-known celebrities as spokespersons in their TV advertisements. A study was conducted to determine whether brand awareness of female TV viewers and the gender of the spokesperson are independent. Each in a sample of 300 female TV viewers was asked to identify a product advertised by a celebrity spokesperson. The gender of the spokesperson and whether or not the viewer could identify the product was recorded. The numbers in each category are given below.

-Referring to Table 12-9, at 5% level of significance, the critical value of the test statistic is
A) 3.8415.
B) 5.9914.
C) 9.4877.
D) 13.2767.

Question

TABLE 12-9
Many companies use well-known celebrities as spokespersons in their TV advertisements. A study was conducted to determine whether brand awareness of female TV viewers and the gender of the spokesperson are independent. Each in a sample of 300 female TV viewers was asked to identify a product advertised by a celebrity spokesperson. The gender of the spokesperson and whether or not the viewer could identify the product was recorded. The numbers in each category are given below.
 
-Referring to Table 12-9, at 5% level of significance, the critical value of the test statistic is
A) 3.8415. 
B) 5.9914. 
C) 9.4877. 
D) 13.2767.

Quizplus · Accepted Answer

At a 5% level of significance for a chi-square distribution with 1 degree of freedom, the critical value is 3.8415.

TABLE 12-9 Many Companies Use Well-Known Celebrities as Spokespersons in Their TV