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What accurately describe the effect of increasing the sample size?
Wiki User
∙ 10y ago
A sample size is a group which is sampled in surveys, statistics, and in the scientific method. Increasing a sample size might decrease or increase the margin of error, depending on what was being measured. For instance, a sample of 100 women who were pregnant, might increase or decrease the the margin of error for women who showed morning sickness while pregnant.
Wiki User
∙ 10y ago
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Will Random sample always accurately predict the outcomes of an entire population?
No. Only a census can ACCURATELY predict the outcomes: a random sample cannot.
What two features must a sample have if its to accurately represent a population?
The sample must be large and random.
Does a parameter describe a population or a sample?
A parameter describes a population. A statistic describes a sample.
What can help to increase study precision?
Increasing your sample size might help
Will a sample's descriptive statistics accurately estimate the underlying population's parameters?
No. They may be good approximations, though.
Does the size of a sample affect the values of the frequency table?
Yes. If the sample is a random drawing from the population, then as the size increases, the relative frequency of each interval from the sample should be a better estimate of the relative frequency in the population. Now, in practical terms, increasing a small sample will have a larger effect than increasing a large sample. For example, increasing a sample from 10 to 100 will have a larger effect than increasing a sample from 1000 to 10,000. The one exception to this, that I can think of, is if the focus of the study is on a very rare occurrence.
What two features must a sample have to accurately represent a population?
What two features must a sample have to accurately represent a population?
How does Increasing the sample size while keeping the same confidence level has what effect on the margin of error?
The margin of error is reduced.
What is a representative sample?
A sample that accurately reflects the characteristics of the population as a whole
Will Random sample always accurately predict the outcomes of an entire population?
No. Only a census can ACCURATELY predict the outcomes: a random sample cannot.
As the temperature of a radioactive sample increases the rate of the nuclear decay?
It stays the same. Temperature has no effect on the rate of nuclear decay.
How does increasing the sample size affect the sample error of the mean?
It should reduce the sample error.
What two features must a sample have if its to accurately represent a population?
The sample must be large and random.
What is the term for a small group that accurately reflects a large population?
Representative Sample.
Collect a sample of a Promissory Note and describe its features Also describe its usage and the involvement of the parties concerned?
sample of a Promissory Note and describe its features. Also describe its usage and the involvement of the parties concerned
What effect does the amount of the sample of a substance affect its density?
it has no effect. density of a substance is the same no matter the size or shape of the sample.
Does a parameter describe a population or a sample?
A parameter describes a population. A statistic describes a sample.
