What is a statistical investigation? Describe the preliminary steps you would take in planning a statistical investigation. In connection with the above discuss the statement, 'Statistical methods are...

Extracted text: What is a statistical investigation? Describe the preliminary steps you would take in planning a statistical investigation. In connection with the above discuss the statement, 'Statistical methods are most dangerous tools in the hands of the inexpert'. You have been asked to conduct a statistical enquiry. Outline the preliminary steps that you would take before commencing the work of collection of data. In connection to the above discuss the validity of the statement, 'A secondary source is not as reliable as a primary source'.