Statistical and Data Analysis Types

You're a chef and want to create the perfect pasta dish. Instead of changing one ingredient at a time, you try different combinations of pasta, sauces, and seasonings all at once to find the tastiest recipe.

• Hypothesis Testing

• Confidence Intervals

• Regression Analysis

• Design of Experiments (DOE)

You want to estimate the average time it takes to complete a task. After measuring it in a sample of 30 tasks, you find the average is 45 minutes, with a confidence interval of 40 to 50 minutes. This means you're pretty confident the true average time falls within this range.

• Design of Experiments (DOE)

• Hypothesis Testing

• Confidence Intervals

• Regression Analysis

You think a new study method helps students score better on exams. You compare test scores of students who used the new method to those who didn't. If the scores of the new method group are significantly higher, your guess is supported.

• Regression Analysis

• Design of Experiments (DOE)

• Confidence Intervals

• Hypothesis Testing

In a manufacturing setting, you're looking to improve the strength of a product. You vary factors like material type, temperature, and pressure simultaneously to find the best combination that yields the strongest product.

• Design of Experiments (DOE)

• Regression Analysis

• Hypothesis Testing

• Confidence Intervals

You want to know if exercise affects weight loss. You collect data on how much people exercise and how much weight they lose. If you find that more exercise is generally linked to more weight loss, you've discovered a positive relationship.

• Confidence Intervals

• Regression Analysis

• Design of Experiments (DOE)

• Hypothesis Testing

You believe a change in a website layout will increase user engagement. You collect data on user interactions before and after the change. If the data shows an increase in engagement after the change, your hypothesis is likely true.

• Confidence Intervals

• Regression Analysis

• Hypothesis Testing

• Design of Experiments (DOE)

In business, you investigate if advertising spending impacts sales. After analyzing data, you see that higher ad spending is associated with increased sales, indicating that advertising influences sales.

• Confidence Intervals

• Hypothesis Testing

• Design of Experiments (DOE)

• Regression Analysis

You're testing a new product's lifespan, and you find it's 500 hours with a confidence interval of 480 to 520 hours. You're confident the product's lifespan is likely between these hours.

• Design of Experiments (DOE)

• Regression Analysis

• Confidence Intervals

• Hypothesis Testing