Obesity is one of the biggest health problems in the
world and it accounts for the death of millions of
people every year. It causes diseases such as diabetes,
cardiovascular disease, cancer, stroke, dementia, and
various others. To find a solution for this health issue, a
random selection of 50 people were put on a weightloss program. The person in charge suspects that the
distribution for the weight-loss program is normally
distributed. The following data were collected:
Test whether the data are normally distributed with
mean of 4 kg and standard deviation of 2.5 kg at a 5%
significance level. Write a conclusion for the claim
made by the person in charge.