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Statistics and probability (John, Lauren) Flashcards | StudBud
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Statistics and probability (John, Lauren)
Quartile 1 is also called:
What is the lowest time in seconds someone ran?
Statistics and probability (John, Lauren)
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1
What is the lowest time in seconds someone ran?
122 seconds
26 seconds
12 seconds
183 seconds
2
Quartile 1 is also called:
the median
the lower quartile
the larger quartile
the upper quartile
3
What was the greatest time someone ran in seconds?
152 seconds
183 seconds
153 seconds
122 seconds
4
Which is NOT a condition for constructing a confidence interval for a population proportion?
10% condition
n≥30
np*≥10
SRS
5
What percent of kids scored above 75%
75%
100%
25%
50%
6
What critical value should be used to find a 95% CI for mean from a sample of size of 25?
2.060
1.960
2.056
2.064
7
In 2017, 55.1% of high school students played on a sports team. Has this percentage changed?
H0: p = .551 H1: p > .551
H0: μ ≠ .551 H1: μ = .551
H0: p ≠ .551 H1: p = .551
H0: p = .551 H1: p ≠ .551
8
In 2008, the % of people living in rural areas was 37.8% Has this percentage decreased?
H0: μ < .378 H1: μ = .378
H0: μ = .378 H1: μ < .378
H0: p = .378 H1: p > .378
H0: p = .378 H1: p < .378
9
To find interquartile range:
Subtract Q4 - Q1
Subtract Q2 - Q1
Subtract Q3 - Q1
Subtract Q3 - Q2
10
The percentage of students employed full-time in 2006 was 63.7% Has this % increased?
H0: p > .637 H1: p = .637
H0: p = .637 H1: p > .637
H0: μ = .637 H1: μ > .637
H0: p = .637 H1: p < .637
11
What is the probability to pull a red marble?
3/10
5/9
1/5
4/10
12
Quartile 3 is also called:
the lower quartile
the larger quartile
the median
the upper quartile
13
what percent of kids scored above 70%
75%
60%
25%
20%
14
What is the probability of pulling a green marble?
4/10
6/9
3/10
2/5
15
Quartile 2 is also called:
the lower quartile
the upper quartile
the median
the larger quartile
