Question

The following test has been resulted before and after using a Less Fat Diet (LFD) in...

The following test has been resulted before and after using a Less Fat Diet (LFD) in order to improve the health of people. The weight of five individuals are recorded as shown below: Let μ1 be the initial weight of the individuals without LFD and μ2 be the weight a with LFD:

users    Weight without LFD              Weight without LFD

1                      149                              142     

2                      194                              189

3                      187                              184

4                      196                              190

5                      203                              199

Given the situation above, estimate/find a statistical test to determine if the LFD diet is effective at reducing weight. Use a significance level of 1%. Please show all steps (null hypotehsis, accept/reject) and why you concluded the LFD is better given the numbers.

Math   Statistics-And-Probability   
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Answer #1

For this problem paired together test is appropriate.

​​​​​​Therefore, We conclued that the LFD diet is not effective at reducing weight.

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