Question 5 2 pts The following data represent the levels of sulfate residuals obtained from photosynthesis of carbon-based substrate, measured in grams. A random sample of 15 substrates, taken from Fiji Islands, yielded the following amounts of residuals: 800, 633, 943, 847, 934, 841, 999, 1021, 342, 540, 550, 872, 809, 990, 1050 From previous studies, it is known that the population has approximately normal distribution. Construct and interpret 95% confidence interval for the mean sulfate residuals of all substrates on Fiji Islands.