Exhibit 7-4
A random sample of 121 bottles of cologne showed an average content of 4 ounces. It is known that the standard deviation of the contents (i.e., of the population) is 0.22 ounces.
-Refer to Exhibit 7-4. In this problem the 0.22 is
A)a parameter
B)a statistic
C)the standard error of the mean
D)the average content of colognes in the long run

Question

Quizplus · Accepted Answer

The 0.22 ounces represents the standard deviation of the population, which is a fixed and known value. Therefore, it is a parameter.

Exhibit 7-4 a Random Sample of 121 Bottles of Cologne Showed an Showed