Answer :
In this problem, 0.22 is a parameter.
Mean is defined as the average of given numbers i.e. sum of all numbers divided by the total number of numbers. The Mean is denoted as m or μ. Standard deviation is the measure which it shows the variation from the mean exists or not. The standard deviation is denoted as σ.
The range of possible values for a variable is known as a parameter. A parametric equation is an equation expressed in terms of parameters. In the equation y = 2x + 1, x is called the parameter. In statistics, a function variable whose variable is sought by means of evidence from the samples is called a parameter.
As per the given question,
- Number of bottles = 121
- mean ( μ ) = 4
- Standard deviation ( σ ) = 0.22
⇒ 0.22 is the standard deviation of the random sample which is a measurement. Measurements of populations can be called parameters.
Therefore, the 0.22 value in the problem is called a parameter.
To know more about parameters refer to:
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The complete question is
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. In this problem, the value 0.22 is
A. a parameter
B. a statistic
C. the margin of error for a confidence interval
D. the average content of colognes in the long run
E. none of the above
