Exhibit 10-10
The results of a recent poll on the preference of shoppers regarding two products are shown below.
-Refer to Exhibit 10-10. The standard error of is
A)52
B)0.044
C)0.0225
D)100

Question

Exhibit 10-10
The results of a recent poll on the preference of shoppers regarding two products are shown below. 
-Refer to Exhibit 10-10. The standard error of  is
A)52 
B)0.044 
C)0.0225 
D)100

Quizplus · Accepted Answer

To calculate the standard error of the proportion, we use the formula: SE = sqrt[(p̂)(q̂)/n]. In this case, p̂ = 0.4, q̂ = 0.6, and n = 500. Thus, SE = sqrt[(0.4)(0.6)/500] = 0.0225. Therefore, the correct answer is C.

Exhibit 10-10 the Results of a Recent Poll on the Preference of Preference