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Do Homework- Steven Smith-Google Chrome Secure | https://www.mathxl.com/Student/PlayerHomework.aspx 4563 18248&question; Ida = 1& MAT-240-R2428-17EW2 Homework: 5-2 MyStatLab: Module Five Save Problem Set Score: 0 of 5 pts 11.2.10 8 of 14 (2 complete) HW Score: 9.23%, 6 of 65 pts Question Help A researcher studies water clarity at the same location in a lake on the same dates during the course of a year and repeats the measurements on the same dates 5 years later. The researcher immerses a weighted disk painted black and white and measures the depth (in inches) at which it is no longer visible. The collected data is given in the table below. Complete parts (a) and (b) below Observation Date Initial After five years 53.5 69.6 59.7 49.4 69.1 66.6 23456 1/25 3/19 5/30 7/3 9/13 11/7 49.7 61.8 60.5 44.6 73.4 60.5 (a) Why is it important to take the measurements on the same date? 0 A. Using the same dates makes the second sample dependent on the first 0 B. Those are the same dates that all biologists use to take water clarity samples. O c. Using the same dates maximizes the difference in water clarity O D. Using the same dates makes it easier to remember to take samples. Click to select your answer and then click Check Answer Clear All Check Answer

Explanation / Answer

Using the same dates makes the second sample dependent on the first.If our period is consistent ,then the result will not subject to be questionable.

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