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What else can I help you with?
How can you determine whether a sample is representative of a population?
Take a simple random sample.
Pollsters are concerned about the random nature of a sample because of their interest in ensuring?
Answer this question… a representative sample.
One way to ensure less sample bias?
Representative/random
Why is important that a sample be random and representative when conducting hypothesis testing?
It helps you nawser
Why are random samples more representative of the population than other kinds of samples?
A 'random' sample - covers all age groups, genders, and other criteria. A 'targeted' sample might only cover a small part of the population.
Purpose of random assignment and using a representative sample in research?
To get a more accurate estimate of the entire population.
What You decide you want your sample to be representative of the population. Which sampling process would provide the most representative sample?
A simple random sample.
A random sample should be taken from?
A random sample should be taken from an entire population.
How can you determine whether a sample is representative of a population?
Take a simple random sample.
What is a survey of a representative sample of the population called?
Random selection.
Pollsters are concerned about the random nature of a sample because of their interest in ensuring?
Answer this question… a representative sample.
One way to ensure less sample bias?
Representative/random
The purpose of random sampling in a poll is to ensure what?
the sample is a representative crossection of the public
Why is important that a sample be random and representative when conducting hypothesis testing?
It helps you nawser
When can statistics be used to gain information about a population from a sample?
When the sample - whether it is random or systematic - is somehow representative of the population.
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.
You decide to select ten percent of the inmates in a prison to receive a survey. You decide you want your sample to be representative of the population. Which sampling process would provide the most representative sample?
a stratified random sample
