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AP Statistics Cumulative Review #3 Flashcards | StudBud

Explore/AP Statistics Cumulative Review #3

AP Statistics Cumulative Review #3

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AP statistics Cumulative Review #3

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Questions 14

Answers

1
Test used for difference of means
1 sample t test (matched pairs)
2 sample t test
1 sample t CI (matched pairs)
2 sample t CI (matched pairs)
2
Define of standard deviation
sum of the squared deviations
the sum of the distances from the mean for each data value
variance2
the average distance from the mean for each data value
3
To interpret r^2..
pos/neg, weak/mod/strong, linear...
___% of the variation in _y_is accounted for by _x_
none of the above
for every rise in y, there is inc/dec in x
4
CI used for mean difference
2 sample t test
1 sample t CI(matched pairs)
1 sample t test (matched pairs)
2 sample t CI
5
If Ho is true, probability the sample mean takes value as/more extreme than the observed
pvalue
significance level
power
confidence interval
6
To design an experiment, state...
how treatments are assigned (SRS usually)
detailed trial simulation (if random digit table)
all of the above
what will be measured
7
What is the only number you round on the AP test?
mean
expected value
sample size
standard deviation
8
explanatory variable
i don't know
x
z
y
9
Degrees of freedom for a linear regression test?
n-1
n
n-2
(p-1)(q-1)
10
If a data set has the same number for all values, the standard deviation would be...
1
0
.3
.5
11
What additional words must be added when COMPARING data?
relate to object
range
greater than, less than, or same as
outlier
12
The test statistics means...
pvalue
z, t or chi square value
degrees of freedom
alpha
13
response variable
treatment
object being tested
causes the change
what is measured
14
Can a p value be over 1?
i don't know
yes
no