STATS RESEARCH PROJECT

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hypothesis_project.pptx

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.