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KINE 2050 Midterm Flashcards | StudBud
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KINE 2050 Midterm
KINE 2050 Midterm
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Answers
1
Calculate 95% Confidence interval:
60.41-65.87
50.9-70.3
61.45-70.38
62.44-67.56
2
Find the z-score for area 0.2054
-0.44
0.54
-0.55
-0.54
3
Find the mean:
26.6
24.87
31.5
22.12
4
T-scores are used to convert z scores to understand distributions with an N<30
False
True
5
What is the kurtosis
leptokurtic
platykurtic
6
You have a sample mean of 23 and a SD of 1.7 for a sample of 15 students. What is the 99% confidence interval?
21.7-24.3
22.9-26.7
20.1-25.6
15.5-35.8
7
Given last question. Calculate the probability of pulling a black card or a King from a deck of 52 cards.
0.054
0.54
54
26
8
Given this knowledge about Gamblers Fallacy which of the following has a greater chance of occurring?
All of the above
None of the above, the events for each are independent.
Flipping heads 4x in a row decreases chance of getting heads again
Rolling 3 on dice 5x in a row decreases chance of getting
9
Calculate:
0.009
8.8
0.14
1.5
10
What type of measurement is degrees in Celsius
interval
ordinal
ratio
nominal
11
Compound probability deals with the probability of 1 or more events occurring
True
False
12
Calculate:
89
93
56
70
13
Calculate 99% CI
61.63-68.37
31.5-85.87
60-70
60.35-72.09
14
Probability is the basis of all descriptive statistics
True
False
15
Gamblers fallacy is the belief that if something occurs more frequently than usual it is less frequently to occur future
True
False
16
What is the score that cuts off the top 30% of the data?
161.2
153
163.9
174
17
What is the simple probability of pulling a King of spades from a deck of 52 cards?
0.0020
= 0.020
0.20
0.052
18
The formula for a Compound probability that is NOT Mutually exclusive is as displays:
True
False
19
Calculate the SEM:
1.2, 4.2
5, 3
0.17, 0.12
2.13, 1.24
20
convert a z-score of -1.7 to a percentile
3rd percentile
4th percentile
45th percentile
30th percentile
21
What type of measurement is degrees in Kelvin?
ordinal
nominal
ratio
interval
22
Probability is often expressed as a ratio. Which of the following answers accurately denotes probability as a formula?
P(O) = #A/#O
P(O) = #O/#A
P(A) = #A/#O
P(A) = #O/#A
23
Who is faster?
Kyle
Jane
Both are too slow
Both are the same
24
Find the area for z-score of -0.78
31.06%
28.52%
35.48%
28.23%
25
If compound probability is
dependent
which would represent the correct formula?
None of the above
P(A and B) = P(A) * P(B/A)
P(A) = #A/#O
P(A and B) = P(A) * P(B)
26
When calculating SEM, increasing the sample number will increase the SEM
False
True
27
what percentile is a score of 163?
72
83.2
90
65.5
28
which of the following is correct?
P(B/A) = 1/9 for the second draw
P(B/A) = 1/8 for second draw
P(B/A) = 2/10 for the second draw
None of the above
29
What type of measurement is used for determining exam grades(A,B,C...)
ratio
interval
ordinal
nominal
30
What is the skewness?
Positive skew
negative skew
