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Statistics Quiz Bee Finals
Statistics Quiz Bee Finals
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1
The following options are reasons why sampling is performed, except
Gathers info from each element in the population
Accuracy of the results
Provides detailed information
Timeliness of the study
2
What is the probability of rock beating paper?
1/3
1
0/3
2/3
3
What is the median for the following scores: 2, 4, 5, 1, 8?
3.8
4
4.5
5
4
When asked questions concerning personal hygiene, people commonly lie. This is an example of:
confounding
non-response bias
response bias
sampling bias
5
The error that arises from a sampling design not properly implemented
Non-sampling error
Type I error
Type II Error
Sampling error
6
A researcher is curious about the IQ of PSA Nueva Ecija employees. The entire group of PSA employees is an example of a:
Parameter
Statistic
Population
Sample
7
What is the probability of paper losing to scissors?
1
1/3
0/3
2/3
8
Which of the following is correct?
The probability of a type I error is alpha
The probability of a type I error is beta
The probability of a type II error is (1 - beta).
none of the above
9
What is the null hypothesis for a Chi-square test?
Both variables have equal means.
Both variables are dependent
Both variables are independent.
Both variables have a significant relationship.
10
Failing to reject the null hypothesis when it is false is:
Type I error
beta
alpha
Type II error
11
What does ANOVA stands for?
Analysis of variance.
Analysis of non ordinal values.
Analysis of variability.
Analysis of values and averages.
12
The list containing all the sampling units
Population
Sample
Frame
Dataset
13
A survey conducted by PSA to gather data on the demographic and socio-economic characteristics of the population.
Consumer Price Index
Census of Population
Labor Force Survey
Family Income and Expenditure Survey
14
What is the probability of selecting the diamond suit from a deck of playing cards?
2/4
0/4
1/4
3/4
15
When does a researcher risk a Type I error?
All of the above
Anytime the decision is ‘fail to reject’.
Anytime H0 is rejected.
Anytime Ha is rejected.
16
A statistic is:
element
a population characteristic
a sample characteristic
normally distributed
17
When performing a One-Way ANOVA, it is assumed that
The samples drawn have varying distributions
The population where the sample is drawn from is normally distributed
The populations where the samples are drawn have varying variances
The sample drawn from the different populations are random and dependent
18
Five-point Likert scales are frequently used to measure motivations and attitudes. A likert scale is a:
Ordinal Variable
All of the above
Discrete Variable
Categorical Variable
19
The median is always:
The same as the mean
The middle score when results are ranked in order of magnitude
The difference between the maximum and minimum scores.
The most frequently occurring score in a data set
20
Normally distributed data are normally referred to as:
Peaked
Skewed
Bell-shaped
Asymmetrical
21
If you flipped 2 coins, what is the probability that both will land on tails?
3/4
1/4
0/4
2/4
22
A parameter is:
a population characteristic
a sample characteristic
element
normally distributed
23
It is a nationwide sample survey designed to provide information on the different indicators related to poverty
Labor Force Survey
Quarterly Economic Indices
Annual Poverty Indicator Survey
Family Income and Expenditure Survey
24
The following are always elements of hypothesis testing, except:
Previous studies
Test Statistic
Decision Rule
Level of Significance
25
If you rolled a 6-sided dice, what is the probability of rolling a 3?
1/6
2/3
5/6
3/6
26
If you flipped a coin, what is the probability it will land on heads?
3/4
0/2
1/4
1/2
27
In a 500m speed skating race, time results would be considered an example of which level of measurement?
Interval
Ratio
Nominal
Ordinal
28
What is the mean for the following scores: 2, 5, 4, 1, 8?
4
20
3
5
29
An estimator’s desirable properties are the following, except:
Subjective
Unbiased
Accurate
Precise
30
The ANOVA is used to test for:
More than two populations
Two Populations
One Population
Independence
31
There are red, yellow and green lollipops in a bag. What is the probability of selecting a blue one?
0/3
1/4
2/3
1
32
Select the order of sampling schemes from best to worst.
stratified, simple random, convenience
simple random, stratified, convenience
simple random, convenience, stratified
stratified, convenience, simple random
33
This nonprobability method of sampling involves selecting units which come to hand or are easiest to contact.
Convenience Sampling
Systematic Sampling
Quota Sampling
Purposive Sampling
34
This is what the experimenter believes to be true and wishes to prove. Sometimes referred to as the research hypothesis.
Final Hypothesis
Alternative Hypothesis
Null Hypothesis
True Hypothesis
35
Statistical techniques that summarize and organize the data are classified as:
Descriptive Statistics
Population Statistics
Sample Statistics
Inferential Statistics
36
The upper bound on the absolute difference between the estimator and the parameter called the error of estimation is the
Bias Factor
Margin of Error
Standard Deviation
Variance
37
To which level of measurement is the Chi-Square test for independence best prescribed?
Nominal
Interval
Ratio
Ordinal
38
A card is selected from a deck of playing cards. What is the probability of selecting a red card?
0/2
1/2
1/4
3/4
39
A lolly bag contains 2 red, 3 green and 2 blue gum balls. What is the probability of selecting a green one?
3/7
2/7
5/7
4/7
40
If you rolled a 6-sided dice, what is the probability of rolling a even number?
1/3
2/3
4/6
1/2
