Question

1. Consider a study where people were asked how much money they currently make at their job. What type of bias do you think will be most likely?

		Nonresponse
		Response
		Sampling
		No bias

1. You are trying to determine what the best combination of diet and exercise provides the most weight loss. You decided to try three different diets (Atkins, Paleo, McDonalds only), along with no dieting, and two different forms of exercise (Yoga, high cardio), along with no exercise. You try each combination possible, and track weight loss for each. What type of Experimental Design is this?

		Completely Randomized Design
		Latin Square Design
		Completely Randomized Block Design
		Factorial Design

1. Choose all that apply. Population parameters

		Are rarely known
		Are estimated from sample statistics
		Are calculated from samples
		Can be found by sampling a large portion of the population

QUESTION 4

1. Collecting an equal number of subjects from predetermined groups is an example of a

Answer 1

1) response bias

Because there is a tendency among people not to exaggerate their income due to a lot of issues like tax.so there will be respondents bias which is response bias

2) there are two factors diet and exercise and also there are different levels of both factors.so this is factorial design.

3) population parameters are the unknown constants of the population.

They are rarely known

Estimated from sample statistics

Can be found be sampling a large portion of population because when sample is large sample statistics will give unbaised estimate .

4) block randomisation