STATS RESEARCH PROJECT
Diet versus Exercise Weight Loss
Randy Mortley
1
Research Question
Is there a difference in weight loss using dieting
Or just exercise in human beings? Which one
will show the biggest difference.
Background Information
People use either diet or exercise to reduce fats
within their bodies. It is not known which is
better between the two methods.
Some people will prefer exercise over diet while
others will prefer to just diet. Health experts will
Normally advise their clients to use diet to
reduce fats.
Methodology
We will be comparing the average weight loss in
people when the diet is used and when exercise
is used. A random number of people in the
United States will be chosen at random and
subdivided into two groups. Treatments will be
applied to the two groups and weight will be
recorded. Inferences will then be made.
Technique and procedure
This research project involves comparison in weight loss in human beings when a diet is used versus when exercise is used to reduce fats. The technique is to test the difference in mean between two independent variables. the following is the procedure.
Deciding the appropriate null and alternative hypothesis.
The collection of the data.
Testing of the hypothesis at a certain significant level
Make decisions on whether to reject or fail to reject the null hypothesis.
Make conclusion.
Hypothesis
Null hypothesis:
No difference in average fat loss in population for two methods.
Ho: µ1 = µ2
Alternative Hypothesis:
There is a difference in the average weight loss between the two groups.
H1: µ1 ≠ µ2
The level of significance is set to be 0.05
α=0.05
Equipment
The equipment to be used is a weighing balance.
It will be used to measure the weight of sampled
human beings. Weight will be measured in
Kilograms (Kg).
Type of Data
The data set will consist of 50 randomly selected
individuals, both males, and females. The data
will be continuous and ratio. The variable is
Weight. It is measured in kilograms.
Experimental Units
The data set will consist of two experimental unit.
Group 1 – A certain type of diet used to reduce body fat will be applied to 25 people daily for one month. The initial weight and final weight for each individual are recorded then the weight difference is computed.
Group 2 – An exercise is conducted to the remaining 25 individuals from the data set daily for one month. The weight difference is then computed by subtracting the initial weight from the final weight.
Population Definition
The sample of 50 individuals is taken from the
American citizens at random. Therefore the
population is all American citizens.
Sampling Technique
The sampling technique is simple random sampling.
Every citizen of the united states has the same
probability of being selected. 50 citizens will be picked
at random and 25 of them will be given the diet. The
remaining 25 individuals from the sample will be put to
the exercise.
References
Holloway, I., & Galvin, K. (2016). Qualitative research in nursing and healthcare. John Wiley & Sons.