Question
In: Statistics and Probability
Whats the difference between describing a sample and making an inference about a population parameter?
Whats the difference between describing a sample and making an
inference about a population parameter?
Solutions
Expert Solution
Statistical inference involves generalizing from sample data to the wider population from which the sample was drawn. Inferences are made by calculating the probability that, given the size of the sample, chance alone might have accounted for a given observation.
Statistical inference is based on the laws of probability, and allows analysts to infer conclusions about a given population based on results observed through random sampling. Two of the key terms in statistical inference are parameter and statistic:
A parameter is a number describing a population, such as a percentage or proportion.
A statistic is a number which may be computed from the data observed in a random sample without requiring the use of any unknown parameters, such as a sample mean.
orchestra answered 2 years agoRelated Solutions
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Whats the differencd between a statistic and a parameter
Whats the differencd between a statistic and a parameter
Question 3: a. In making an inference about a population, it is usually desirable to make...
Question 3:
a. In making an inference about a population, it is usually
desirable to make a/an __________ estimate.
sample
standard
average
interval
b. If housing starts are always stronger in the spring and
summer than during the fall and winter. This is a result of what
type of data pattern?
Cyclical
Irregular
Seasonal
Trend
c. For the forecasting process, where would the model selection
step fall in the process?
After specifying the objectives and before determining what to
forecast....
Differentiate between a population and a sample, and a parameter and a statistic. In your explanation,...
Differentiate between a population and a sample, and a parameter
and a statistic. In your explanation, apply the concepts of
descriptive and inferential statistics. Provide specific examples
to illustrate each. Discuss why the ability to differentiate these
terms is critically important when interpreting research findings
related to public health.
Identify if population parament or sample statistic: Is statement population parameter or sample statistic? If, parameter,...
Identify if population parament or sample statistic:
Is statement population parameter or sample statistic? If,
parameter, then identify population and parameter. If sample, then,
what is population, sample, and statistic?
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Describe sampling error, making use of the following terms: sample, population, parameter, statistic.
Describe sampling error, making use of the following terms:
sample, population, parameter, statistic.
After reviewing data from a sample, an inference can be made about the population. Find a...
After reviewing data from a sample, an inference can be made
about the population. Find a data set on the internet. Some
suggested search terms: Free Data Sets, Medical Data Sets,
Education Data Sets.
A. Introduce your Data Set and Cite the Source.
B. What trends do you notice in your data set?
C. Based on the trends and the history of your data set, make a
claim. What kind of test (left, right, two tailed) would you have
to...
What is statistical inference? A) a way to infer conclusions about the wider population from sample...
What is statistical inference?
A) a way to infer conclusions about the wider population from
sample data B) using facts about a sample to estimate the truth
about the whole population C) a way to describe the uncertainty and
variability inherent in all statistical information D) all of the
above
After reviewing data from a sample, an inference can be made about the population. For example,...
After reviewing data from a sample, an inference can be made
about the population. For example,
Find a data set on the internet. Some suggested search terms:
Free Data Sets, Medical Data Sets, Education Data Sets.
Introduce your Data Set and Cite the Source.
What trends do you notice in your data set?
Based on the trends and the history of your data set, make a
claim. What kind of test (left, right, two tailed) would you have
to complete?...
After reviewing data from a sample, an inference can be made about the population. For example,...
After reviewing data from a sample, an inference can be made
about the population. For example,
Find a data set on the internet. Some suggested search terms:
Free Data Sets, Medical Data Sets, Education Data Sets.
Based on the trends and the history of your data set, make a
claim. What kind of test (left, right, two tailed) would you have
to complete?
Show work
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