Chardonnay Felix

2021-01-02

When designing homes, the heat conductivity of materials is important.. As a test of a new measurement process, 10 measurements are made on pieces of glass known to have conductivity 1.
The average of the 10 measurements is 1.07. For each of the boldface numbers, indicate whether it is a parameter or a statistic. Describe your response

cheekabooy

Step 1
Population of interest:
All interested individuals are included in the population of interest. The overall group of objects about which conclusions are to be drawn is called the population.
Parameter:
Any statistical measure based on all units in the population is called Parameter.
Sample:
Any segment of the population is a sample.
Statistic:
Any statistical measure calculated on the basis of sample observation is called Statistic.
Step 2
Check whether the given estimate is a parameter or a statistic:
The objective of the investigator is to estimate “How well materials conduct heat matters when designing houses”.
To achieve the objective, the investigator collects a sample of 10 measurements that are made on pieces of glass known to have conductivity 1.
The average of all this 10 measurements is 1.07.
Now, the estimate is the average of 10 measurements. That is, 1.07.
Here, the estimate (average of measurements) is calculated on the basis of 10 sample observations.
Therefore, it is a statistical measure calculated on the basis of sample observations.
Thus, the estimate in the given situation is a statistic.
Step 3
Result:
The estimate in the given situation is a statistic.

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