Fifty-five patients participated in the study of a new blood test for a particular disease. Their gender, age, duration that they have had the disease, level of a particular component in their blood (level A), and the value of the protein level obtained by the new test are in the data file protein .txt. The investigators of the new test want to know if it is influenced by the patients age, disease duration, or level A value.
(a) Write a report to address this question.
(b) Consider the gender of the patients and write a brief report.