# Quantitative Data Analysis

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## 1. Which of the following is true about the p value?

• Indicates the probability of seeing the observed result by chance alone.
• Indicates that the results observed are of medical or healthcare significance
• Rules out the role of bias
• Indicates the probability that the null hypothesis is true
1 of 10

• Flat
• Spiked
• Bell shaped
• Skewed

## 3. Which of the following are measures used to analyse the central tendency of data?

• Standard deviation, range and mean
• Median, range and normal distribution
• Mean, median, mode
• Mean and normal distribution

## 4. Decision tables or decision trees can be helpful in deciding which statistical test needs to be carried out to analyse the data. Which of the following questions is not important in helping decide which test to use?

• If you are looking for a difference, are you looking for between group or repeated measures?
• What is the central tendency and variability of the data?
• Are you looking for a difference or a relationship?
• What level of data is the dependent variable?

## 5. There are two main branches of statistics – descriptive and inferential. Which of the following are true about descriptive statistics?

• Descriptive statistics enable you to make decisions about your data, for example, is one group mean significantly different from the population mean?
• Descriptive statistics enable you to draw inferences from your data, for example, does one variable predict another variable?
• Descriptive statistics describe the data including the central tendency and variability
• All of the answers are true