Experimental Design and Data Analysis Quiz 1
Experimental Design and Data Analysis Quiz
Test your knowledge and understanding of experimental design and data analysis with our comprehensive quiz! This quiz covers fundamental concepts, statistical analysis methods, and practical applications in real-world scenarios.
Challenge yourself with:
- 32 engaging questions
- Multiple choice answers
- An opportunity to deepen your understanding of key concepts
A “census” is:
A summary measure that describes a characteristic of the population
A survey of the entire population
Is a summary measure computed from a sample
All above
When modeling the relationship between body mass and metabolism:
Metabolism is the response and body mass is the predictor
Body mass is the response and metabolism is the predictor
Body mass and metabolism are not related
None of above
Area in Statistics that enables making decision concerning a population based only on sample data
Descriptive Statistics
Survey
Randomization
None of above
Complete the following “An independent variable…”
Can be manipulated by experimenter
Is also known as response variable
Should not be manipulated by the experimenter under any circumstances
Is always expressed in different levels
In a two-factor experiments, treatment is a specific combination of factor levels
True
False
In a two-factor experiments, dependent variables of interest are carefully controlled by the experimenter in order to determine their effect on a response
True
False
In a study investigating the temporal effects of sub-lethal concentrations of rifampicin on the bacterial growth
The dependent variable is the rifampicin concentration and the independent variable is the different time points
The independent variable is the bacterial cell counts and the independent variable is the measured observance at 590 nm
Rifampicin concentration is the independent variable and the bacterial growth the dependent variable
None of above
Ordinal scales are typical measures of non-numeric concepts such as:
Male/female
Cold, warm, hot, very hot
9 ℃, 18℃, 28℃, 42℃
Ok, unhappy, happy, very happy
In clinical research and practice “SOPs” stands for:
Sample only post treatment
Standard operating procedure
Standard over procedure
Sample operating procedure
A clinical study investigating disease progression should include:
Patients and healthy individuals
Different age groups including children
Diagnostic sub-categories of patients
Different ethnic groups
What is the probability of picking up an ace in a 52 deck of cards?
4/52
1/6
1/4
52/4
Uniform distribution is bounded on both sides
True
False
In a scenario, where 20 black and 150 red marbles were removed from a jar containing 100 black and 900 red marbles. What is the probability of drawing a white marble?
1/5
0
Changed and cannot be determined
Changed and can be determined
Considering the consecutive outcomes of a fair dice: 6 6 2 3 1 6 2 1 6 4, what is the probability of the next number is a 6?
4/10
10/4
1/6
1/5
Consider measurements of the mass of a 60.0 g standard sample and measured values of 57.5 g, 57.5 g, 57. 6 g and 57.8 g, this indicated that the scale is
Not precise and not accurate
Both precise and accurate
Accurate but not very precise
Precise but not very accurate
Frequency distribution where central values are more likely than distant values
Poison distribution
Uniform distribution
Gaussian distribution
All of above
Random events act to produce variability in a continuous characteristic
Poison distribution
Uniform distribution
Gaussian distribution
All of above
The cumulative frequency is calculated by adding each frequency distribution table the sum of its successors
True
False
In a Gaussian distribution both the mean and mode are considered good measures of the center, but can be greatly affected by outliers
True
False
In a Gaussian distribution both the mean and range can be greatly affected by outliers
True
False
In a skewed frequency distribution, the mean is always greater than the mode
True
False
In a negatively skewed frequency distribution the mode is always greater than the median
True
False
An outlier may be due to variability in the measurement or may indicate experimental error
True
False
How many modes are in a bimodal frequency distribution?
One
Two or more
Two
None of above
In a normal distribution 95.45% of the data lie within ± 3 standard deviations from the mean
True
False
In the data set (2, 3, 4, 9, 7, 8, 8, 11) the rank for datum 7 and 8 is respectively:
0 and 4
5 and 5.5
5 and 6.5
4 and 5.5
The mean of the following data set (15, 13, 18, 16, 14, 17, 12) is:
13
18
12.5
15
The median of the following data set (42, 44, 45, 45, 46, 47, 48, 49, 57) is:
45
46
47
44
The median of the following data set (12, 18, 16, 21, 10, 13, 17, 19) is:
15
18
16.5
17.5
The mode of the following data set (39, 44, 42, 39, 48, 39, 39, 48, 39, 42, 40, 39, 39,41,39,47) is:
42
38
39
39, 48, 42
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