Can someone answer pelase? In a study of a weight loss program, 45 adults aged 3
ID: 3297428 • Letter: C
Question
Can someone answer pelase?
In a study of a weight loss program, 45 adults aged 30-45 were randomly chosen. Each person was weighed before the program and after. The average weight loss was 20 pounds, but this was found to happen with about a 25% chance with a diet that has no effect.
Identify the following:
Population: ______________________________________________
Sample: _________________________________________________
Unit/individual: ___________________________________________
Response variable: ________________________________________
What type of variable is the response variable? And what is the level of measurement?
Are the results statistically significant? Practically significant?
Is this an observational study or experiment?
Explanation / Answer
Population : Population is the entire pool from which a statisticalsample is drawn. Here population is the entire population of aged people from 30 to 45.
Sample : Sample here is the group of 45 people in the age group of 30-45.
Unit/ Individual : Here an individivual is an adult having age between 30 to 45 included for weight loss program.
Response Variable : Here response variable is the weight of the unit/individual.
What type of variable is the response variable? And what is the level of measurement?
Dependent variables are the response variable. Leval of measurement is ordinal.
Are the results statistically significant? Practically significant?
With placebo, there is 25% chance with a diet that has no effect which is more than the standard 5% significance level. The results are practically significant as the mean weight loss is 20 pounds, which is significant in practically purpose.
Is this an observational study or experiment?
Here, we have performed an experiment on particpant so it is an experimental study.