
Statistics Quiz
Quiz
•
English
•
12th Grade
•
Practice Problem
•
Hard
Michelle Chong
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The weight of objects in kilograms, which cannot be negative, is measured on which scale?
Ordinal
Nominal
Ratio
Interval
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the null hypothesis (H₀)?
A claim about the sample.
A claim about the mean of the population.
A claim to be tested or rejected.
A statement of effect or difference.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the difference between a one-tailed and a two-tailed test in hypothesis testing?
A one-tailed test is always more accurate than a two-tailed test.
A one-tailed test is only used when the null hypothesis is true, while a two-tailed test is used for alternative hypotheses.
A one-tailed test evaluates the effect in one specific direction, while a two-tailed test evaluates the effect in both directions.
A one-tailed test uses a higher confidence level than a two-tailed test.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why might a researcher increase the sample size?
To increase statistical power and significance.
To increase the standard deviation.
To reject the null hypothesis.
To decrease confidence intervals.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a confidence interval in statistics?
A single point estimate of a population mean.
An interval within which the true population parameter is expected to fall with a certain probability.
The range between two-point estimates.
A method to calculate the population standard deviation.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does statistics focus on?
Explaining relationships and making predictions.
Gathering unrelated data.
Ignoring future trends.
Avoiding complex data.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a population in statistics represent?
The entire group of the study.
Only numerical data.
A sample size.
A subset of data.
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