EDCO 735 / EDCO735 QUIZ 2
N decreases the sampling distribution gets:
-
wider
more pointy
more leptokurtic
more representative Warner - Section 2.11
Calculating the sample standard deviation
...
EDCO 735 / EDCO735 QUIZ 2
N decreases the sampling distribution gets:
-
wider
more pointy
more leptokurtic
more representative Warner - Section 2.11
Calculating the sample standard deviation always makes use of:
variance
random sample
convenience sample
nominal level of measurement
In order to calculate the mean you must:
divide by the sample size
have at least ratio level of measurement
have a normal distribution
use a representative sample
A two-tailed outlier for the t distribution must have a t score equivalent to the:
highest 2.5% or lowest 2.5% of the t distribution
highest 5% or lowest 5% of the t distribution only the highest 5% of the t distribution
only the lowest 5% of the t distribution
Question 5
0 / 3 pts
Sampling error refers to:
-
about how much we should expect our sample mean to be from the population mean
about how much we should expect an individual score in our sample to be from the population mean
the amount of error in our measurement
how representative our sample is Warner - Section 2.10-2.14
As N decreases we can expect the standard error of the mean to:
-
increase
decrease
neither increase nor decrease
either increase or decrease Warner - Section 2.10
In order to calculate the sum of squared deviations you must:
calculate the mean
divide by degrees of freedom
take the square root of the sum
multiply each score by itself
The standard error of the mean is conceptually similar to:
the standard deviation
variance
sum of squared deviations
causal inference
The standard error is related to all of the following except:
-
causal inference
dependent on sample size
is smaller with a larger sample
involves the confidence interval Warner - Section 2.11
As N increases, the standard error of the mean:
-
decreases
increases
remains constant
varies randomly
Warner - Section 2.12
Quiz Score: 15 out of 30
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