A researcher studies water clarity at the same location in a take on the same da

Question

A researcher studies water clarity at the same location in a take on the same dates during the course of a year and repeats we measurements on the same dates 5 years later. The researcher Immerses a weighted disk painted black and white and measures toe depth (In indies) al which il is no longer visible the collected data is given in tax: table below Complete pails (a) and (b) below. Why is it important to lake the measurements on the: same date? Using the same dales makes the second sample dependent on the first. Those are the same dates that al biologists use to take water clarity samples. Using the same dates maximizes the difference in water clarity Using the same dates makes It easier to remember to take samples. Does the evidence suggest that the clarity of the lake is improving at the a= 3.05 level of significance? Note that the normal probability pot and boxplot of the data indicate that the differences are approximately normally distributed with no outliers Choose t

Explanation / Answer

Solution:

(a) A. Using the same dates makes the second sample dependent on the first.

(b) Do not reject Ho.

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