Interview Questions and Answers

Example:

Population: All students in a university. Sample: 100 students randomly selected from the university.

Example:

If p-value is 0.05, there is a 5% chance of observing the results if the null hypothesis is true.

Example:

For a set of test scores: 70, 72, 75, 78, 80. Standard deviation is approximately 3.16.

Example:

Population parameter: Average income of all households. Sample statistic: Average income of a sample of 100 households.

Example:

A 99% confidence interval for the average weight of a certain species of bird is 20 to 25 grams.

Example:

Creating a histogram to visualize the distribution of exam scores in a class.

Example:

Comparing the distribution of salaries in different departments using box plots.