13.) In the following dataset: 2, 3, 3, 1, 4. What are the Mean and Standard Deviation (estimate of the population SD)? M = 2.6, SD= .5 M = 2.6, SD=1.14 M = 3, SD=1.87 M = 3.6, SD=.5
13.) In the following dataset: 2, 3, 3, 1, 4. What are the
M = 2.6, SD= .5
M = 2.6, SD=1.14
M = 3, SD=1.87
M = 3.6, SD=.5
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14.) The following are percentiles associated with Variable X:
5th percentile = 25
10th percentile = 30
25th percentile = 40
50th percentile = 45
75th percentile = 55
90th percentile = 70
What is the value corresponding to the upper fence of a boxplot?
77.5
70
17.5
32.5
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15.) Which of the following corresponds to the power of a study with α = .05 and β = .30?
.7
.95
.8
None of the above
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16.) If I am running a one-sample t-test on a
18
24
19
20
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17.) For a
30 & 70
2.5 & 95.5
20 & 80
40 & 60
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18.) A researcher is running a one sample t-test. In the reported results, the researcher indicates that the test had 50 degrees of freedom, and a t-value of 1.5. What was N?
50
49
51
1.5
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19.) In the standard normal model, what is the percentile associated with the value x = 0?
99th
25th
50th
75th
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20.) What are the approximate critical values for a two-sided t-test (alpha = .05) with an N = 1000000
-1.96 & 1.96
-0.05 & 0.05
-2 & 2
Cannot know because the value is not included in the t-table
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21.) Jude scored a 56 in an exam. The Mean for the class was 50 and the standard deviation was 5. Which of the following best describes Jude's score relative to the rest of the class?
11.5% of students scored higher than Jude
88.5% of students scored higher than Jude
55% of students scored lower than Jude
Jude's score is an outlier
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