Which of the following is NOT a measure of dispersion?
Variance
Range
Median
Standard Deviation
Which type of error occurs when we reject a true null hypothesis?
Sampling error
Type II error
Type III error
Type I error
Which of the following is an example of inferential statistics?
Creating a bar chart to show the distribution of grades on an exam
Estimating the average income of all citizens in a country based on a sample
Finding the range of ages among employees in a company
Calculating the average height of students in a class
Which of the following is NOT affected by outliers?
Mean
If the p-value is less than the significance level, what decision do we make regarding the null hypothesis?
Conclude that the null hypothesis is true.
Accept the null hypothesis.
Fail to reject the null hypothesis.
Reject the null hypothesis.
Which of the following correctly defines the null hypothesis?
The statement that is rejected if the p-value is greater than the significance level.
The statement that is accepted if the p-value is less than the significance level.
The statement of no effect or no difference.
The statement we are trying to prove.
Which of the following is NOT a core component of statistical analysis?
Probability Assessment
Algorithm Development
Data Interpretation
Data Collection
In a probability distribution, what does a higher peak indicate?
Lower probability of values around the peak
Greater variability in the data
Higher probability of values around the peak
Smaller sample size
In a deck of 52 cards, what is the probability of drawing a heart, given that you know the card is red?
1/52
1/13
1/2
1/4
What does the alternative hypothesis typically represent?
The opposite of the null hypothesis.
The statement that is always rejected in hypothesis testing.
The statement that is always accepted in hypothesis testing.