Pleаse nоte thаt this questiоn cоnsists of four pаrts. You may use MINITAB to double-check your final answer. However you MUST show all the mathematical work to get to the final answer. Just giving the answer without adequate work/explanation may result in zero for the question. In 2023, the US National Center for Health Statistics conducted the The National Health Interview Survey which surveyed 333 adults. The results indicated that 21.4% of the sampled adults were current smokers. A similar study conducted in 2013 of 420 adults indicated that 25.6% of the sampled adults were current smokers. Researchers are interested in testing whether there is any difference between the proportions of current smokers in the years of 2013 and 2023. Formulate appropriate null and alternative hypothesis that answer the research question. What conditions need to be satisfied in order for you to continue with the hypothesis test? Check if they are satisfied. Calculate the test statistic for the test. Show your work. Using only MINITAB is not acceptable. If the p-value is calculated to be 0.177, what is your final conclusion at 5% significance level?
Why is SDS used in the electrоphоresis оf proteins?