True False questions T F I am interested in the percentage

) True False questions.

(T, F) I am interested in the percentage of people who smoke in each state. The data level of this data is “interval.”  

(T/ F) A study without researcher intervention is called a noninvolvement study.

(T, F) When a person said the average salary is increased by 10%, the other person said only 40% of people had increased salary. This is an example of detached statistics.

(T, F) The central limit theorem says the mean of a sample closely follows a Normal distribution when the sample size is large for any continuous and discrete population distributions.

Solution

i) I am interested in the percentage of people who smoke in each state. The data level of this data is “interval.”

This is false statement because the percentage of people who smoke in each state is nominal scale.

ii) A study without researcher intervention is called a noninvolvement study.

This is false statement beacause A study without researcher intervention is called An observational study.

iii) When a person said the average salary is increased by 10%, the other person said only 40% of people had increased salary.

This is true statement.

iv) The central limit theorem says the mean of a sample closely follows a Normal distribution when the sample size is large for any continuous and discrete population distributions.

This is also true statement.