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BESC 3010 TEST 2 Questions And Answers 100% Verified.

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besc 3010 test 2 questions and answers 100 verif

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BESC 3010 TEST 2 Questions And
Answers 100% Verified.

one reason that researchers nearly always gather data from samples of participants
instead of entire populations is because.... - correct answer.It can be impractical or
even impossible to study populations

If a test has a population mean of 70 and standard deviation of 6, then what is the z-
score for a sample of n = 9 with a mean of 76? - correct answer.3

The central limit theorem says that when all possible samples of a sufficient size are
taken from a population and their means are charted, the distribution of means will be...
- correct answer.Normally distributed

The distribution of all possible samples of a given size (e.g., n=54 or n=117) are taken
from a population and their means are charted, that distribution is known as... - correct
answer.The sampling distribution of means

If a distribution of raw scores has a strong negative skew, then, given sufficiently large
n, the sampling distribution of means for that distribution will.... - correct answer.Be
normal

The standard error is.... - correct answer.The standard deviation of the sampling
distribution

The distribution of all possible sample means (of a given size) is called... - correct
answer.The sampling distribution of means

If a distribution has a mean of 100 and a standard deviation of 15, then what is the
standard error for a sample of 225 scores? - correct answer.1

If a distribution has a mean of 30 and a standard deviation of 3, then what is the z-score
for a sample of 4 scores with a mean of 27? - correct answer.-2

The Central Limit Theorem states that the shape of a sampling distribution becomes
closer to what shape as the number of sample means in the distribution increases? -
correct answer.Normal

, If the population mean for a distribution is 150 and the standard deviation is 20, then
what is the z-score for a sample of 100 people with an average score of 153? - correct
answer.1.5

If a person were to create a sampling distribution for sample standard deviations, then
the mean of that distribution would be equal to... - correct answer.The standard
deviation of the original distribution.

If a population has a mean of 40 and a standard deviation of 8, what would the z-score
be for a sample of 16 people with a mean of 46? - correct answer.3

A sampling distribution can be calculated for... - correct answer.Any sample statistic

What is the standard error of a distribution if σ= 20 and n = 25? - correct answer.4

If a population has a mean of 60 and a standard deviation of 15, what is the z-score for
a sample of 9 people with an average of 55? - correct answer.-1

As the size of samples (n) in a sampling distribution increases, the shape of that
distribution becomes more... - correct answer.Normal

What is the z-score for a sample with n = 100 and M = 103 if the population parameters
are μ=100 and σ=10? - correct answer.+3

What is the standard error for a distribution with σ= 40 when n = 4? - correct answer.20

If a distribution of raw scores has a strong positive skew, then, given a sufficiently large
n, the mean of the sampling distribution will be equal to the _____ of the raw score
distribution. - correct answer.Mean

One reason that researchers nearly always gather data from samples of participants
instead of populations is because.. - correct answer.It is easier to gather data from
samples than populations

According to the Central Limit Theorem, if a research takes sufficiently large samples
(e.g., n > 30) from a bimodal distribution, then the resulting sampling distribution will
be... - correct answer.Unimodal

The distribution of all possible sample variances (of a given sample size) is called... -
correct answer.The sampling distribution of variances.

The distribution of all possible sample variances - if n is sufficiently large (e.g., n > 30) -
will be... - correct answer.Mesokurtic

The standard error of a sampling distribution is a function of two things: - correct
answer.The population standard deviation and the sample size

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