Research question: Has the water level of the Salton Sea California decreased in the last ten years. Also compared to years 2003-2013(previous 10 years)? Calculate the 95% confidence interval of the population mean for group and report the lower limit and upper limit of the interval. If your research question is to compare the population mean of two groups, you have two groups lower and upper limit. 2. Interpret the above confidence intervals 3. If you have one sample group, determine whether the value is your research question (the value in which is compared to the population mean) is within the confidence interval or not. Then describe what it implies. If you have two groups of data determine whether the confidence intervals of the two groups overlap or not. Then describe what that implies.