## Q:

### What is a type 1 error?

## Q:

### What type of error falsely rejects the null hypothesis in favor of the alternate hypothesis?

## Q:

### What is a type 2 error?

## Q:

### Which of the following is not a step in experimental design?

## Q:

### In experimental design, what is the order of the five steps?

## Q:

### Which of the following are steps in experimental design? I. MeasurementII. HypothesisIII. Communicate

## Q:

### Suppose that a car company wants to know if a new fuel additive increases the fuel efficiency of their vehicles. They undertake an AB test to investigate. What is the null hypothesis in this test?

## Q:

### A food wholesaler is looking to reduce its costs by shipping to its customers three days a week rather than five. However, the company believes that this may cause it to lose some customers. It decides to use an AB test to test their hypothesis. What is the null hypothesis of this test?

## Q:

### A retail store is considering increasing their current discount on a product to see if it will sell more. They decide to perform an AB test. What is the alternate hypothesis?

## Q:

### Alpha = 0.06 P-value = 0.05With the information above, what conclusions can you draw?

## Q:

### Alpha = 0.05 P-value = 0.08With the information above, what conclusions can you draw regarding H0 and H1 in a hypothesis test?

## Q:

### Question 4 Alpha = 0.05P-value = 0.04With the information above, what conclusions can you draw?

## Q:

### Simple surveys, counting data, and data mining are all studies of what type?

## Q:

### Repeated measures, AB testing, and randomized control trials are all studies of what type?

## Q:

### How do observational studies differ from experimental studies?

## Q:

### What is a statistical assumption?

## Q:

### Which of these is not a statistical assumption?

## Q:

### Assuming that the data sample is large enough for the analysis is an example of what kind of statistical assumption?

## Q:

### When in doubt, what confidence interval and alpha should you use?

## Q:

### What is the alpha for a 90% confidence interval?

## Q:

### What is the alpha for a 96% confidence interval?

## Q:

### What is confirmation bias?

## Q:

### What is observational bias?

## Q:

### What are five common types of bias?

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