Question

Identify the following

a.Population

b.Sample

c.Parameter

d.Statistics

West Lake in Everglades National Park experienced a hurricane in 2017. The mangrove forests in the area experienced high levels of precipitation (rain) and wind, and a high amount of leaf litter ended up in the lake. You have been provided with data on the nitrate levels (ug/L) in West Lake for two years: 2014 (before the hurricane) and 2017 (after the hurricane). For both years, sampling was conducted by collecting water samples from 35 random sites within the lake.

Based on observations of water in West Lake during 2014 and 2017, we could ask the following question: Has the nitrate level (ug/L) in West Lake changed between 2014 and 2017?

Answer 1

solution:

Here we want to check whether there is a significant difference in the nitric level between 2014 and 2017.

In the present experiment, we consider the Population as West Lake in Everglades National Park.

Sample taken is sample of West Lake for the year 2014 and 2017.

Parameter taken is nitrate levels (ug/L) in the west lake.

Here we have to whether there is a significant difference in the nitric level. So the test to be used is t test and the statistic is .

Please comment for clarification and give thumpsup.