Problem 3 (25 pts)The camera store in question wants to increase sales and is exploring three options:1. Invest and expand the current store.2. Open a second store in another part of the city.3. Open an online outlet.Develop a methodology including the statistical methods used to assess between theseoptions. Problem 4 (25 pts)Read the article (p. 221 â 225)Â«Performance and duration differences between online and paperâpencil testsÂ» andanswer the questions below.Part A.1. Develop a 95% confidence interval using data from this study.2. Perform a hypothesis testing using data from thisstudy. (show all the the appropriate steps).3. Suggest another statistical technique(s) for the purpose of this study. Explain.Part B.For this study briefly describe how the researcher draw conclusions from a sample about apopulation. Try to be as analytic as possible and use the comments bellow.1. Determine (or define) the independent variable(s).2. Determine (or define) the dependent variable(s).3. Determine (or define) qualitative and quantitative variable(s).4. Determine (or define) the sample and the population.5. Describe the statistical method(s) being used and define inferential statistics. Interpret themeaning of p-value.