Inferential statistics

How many type of statistics?

• 1

• 2

• 3

• 4

What is not another way to call inferential statistics?

• Inferences in statistics

• Statistical inference

• Inferential statistics

• Descriptive statistics

What is inferential statistics?

• Techniques to summarize a data set

• Techniques make predictions and conclusions about the populations you are looking at by interpreting the results of random samples from that population

• Techniques to describes a data set

• Techniques that we collect data from a specific group

Below answers what is not type of statical inference that are extensively used for making conclusions?

• Confidence interval

• Hypothesis testing

• Descriptive statistics

• T-test

Which type of statistical inference is extensively used for making conclusions?

• Confidence interval

• Descriptive interval

• Inference interval

• Statistical interval

If margin of error value increases, accuracy level would

• Increase

• Decrease

• Have no change

• I don't remember 

If margin of error value decreases, accuracy level would

• Increase

• Decrease

• Have no change

• I can't think 

If there is large variability in population, sample size should be

• Big

• Small

• Unaffected

• Not matter

If sample size increases, accuracy level would

• Increase

• Decrease

• Have no change

• This give me headache

If you have no idea what value for sample proportion ( p̂ ) to determine sample size, it is recommended to choose

• 0.1

• 0.25

• 0.50

• lucky number