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8.1 Flashcards | StudBud

8.1

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#MAT152 Chapter 8.1

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Questions 4

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1
The standard deviation of the sampling distribution of x bar
increases as n increases
is called the standard error of the mean
is normally distributed
is the same as the standard deviation of the population
2
Statistics are random variables because
they measure a sample and not a population
their values are unknown
their values vary from sample to sample
there are many different statistics that can describe a set
3
The mean of the sampling distribution is equal to mean of the
parent population if n is large enough
standard error of the sample mean
parent population regardless of the sample size
normal distribution
4
"Describe" in this chapter signifies
a probability distribution
the sample mean
the shape, center, and spread of statistics
a simple random sample