Instruction: Write your answer to each problem and copy your R codel 1. Trace metals in drinking water affect the flavor

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Instruction Write Your Answer To Each Problem And Copy Your R Codel 1 Trace Metals In Drinking Water Affect The Flavor 1 (45.19 KiB) Viewed 69 times

Instruction: Write your answer to each problem and copy your R codel 1. Trace metals in drinking water affect the flavor and an unusually high concentration can pose a health hazard. Ten pairs of data were taken measuring zinc concentration in bottom water and surface water. The results are shown in the below. 6 7 10 Location 1 2 3 4 0.430 0.266 0.567 0.531 5 0.707 8 0.589 9 0.469 0.716 0.651 0 Zinc concentration in bottom water 1723 0.612 0.415 0.238 0.390 0.410 0.505 0.509 0.632 0.523 0.411 Zinc concentration in surface water Does the data suggest that the population average zinc concentration in the bottom water is different from that of surface water? Perform the required hypothesis test. a) is this independent sample or paired sample? b) Calculate the differences between the pairs of data. c) State the null and alternative hypotlapses (Hint: we want to show average zinc koncentration in the bottom water is different from that of surface water) d) Compute the pairedt test statistic • Find the p-value and make a final decision Make your final conclusion Use Lost function in R to perform the same hypothesis test. Copy your code. h Use test function to find 95% confidence interval for the mean of paired differences. Interpret the confidence interval you found