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Answer:
Step-by-step explanation:
In the following hypothetical scenarios, classify each of the specified numbers as a parameter or a statistic.
1. There are nine justices currently serving in the United States Supreme Court, and 44% of them were appointed after the year 2000, The 44% here is a __Parameter________.
2. In a 2011 Gallup poll of 1008 adults living in the United States, 11% said they are satisfied with the condition of the national econormy. The 11% here is a ___Statistic______
3. The survey results from 12 local parks show the mean height of 60 ft for mature oak trees. The mean height of 60 ft is a ___Statistic_____.
4. The 36 students in Ms. Dunham's second grade class have a mean height of 64 inches with a standard deviation of 1.3 inches. The 1.3 inches is a ___statistic_______.
5. In a random sample of homeowners in the United States, it is found that 34% of the sampled homeowners renew their home warranty. The 34% here is a ___statistic_____.
Note that the characteristic of a population is parameter and characteristic of a sample is statistic
Parameter summarizes information of entire population whereas statistic summarizes information for sample.
For given condition, the blank places are filled with:
- Parameter
- Statistic
- Statistic
- Parameter
- Statistic
What is a population and parameter?
The entire group or system which we are taking in consideration is population. Nothing bigger than it lies there in consideration.
Ex: If we're taking about health problem in a country, then the whole country people form a population.
If we're taking about numbers on a 6 face die, then those 6 numbers on 6 faces form a population.
Those numbers who summarize information about population are called parameter.
What is sample and statistic?
A portion of population taken and analyzed to predict information about population is called sample of that population.
Ex: When someone surveys a group, then he/she surveys a portion and not whole population in general.
Those numbers who summarize information about sample are called statistic.
(Statistic is different than statistics)
Thus, from these definition, we can say that:
1: In this case, only US Supreme Court judges are in consideration. Thus, its a population. And thus, 44% is parameter.
2. It was a poll ( on 1008 people ) to know information about average US adults. Thus it was sample from population as US citizens. Thus, 11 % shows data of sample or it is statistic.
3. It is survey on a subgroup. Thus, mean 60 feet is statistic,
4. Whole class is in consideration and whole class's mean and standard deviation is given. Thus, the class is population in consideration and 1.3 inches is statistic (sample standard deviation here)
5. It is clearly stated that it is a sample. Thus, 34% here is representing data of sample, thus, being a statistic.
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