A95% confidence interval for a population mean, μ, is given as (18.985, 21.015). this confidence interval is based on a simple random sample of 36 observations. calculate the sample mean and standard deviation. assume that all conditions necessary for inference are satisfied. use the t-distribution in any calculations.

standard deviation of the sample =  s = 3.04

Step-by-step explanation:

given,

μ, is given as (18.985, 21.015)

sample mean =

                      =19.9865

margin of error = 19.9865 - 18.958 =1.0285

The degree of freedom = n -1 = 36 - 1 = 35

a = 0.05,  t(0.025, df = 35) = 2.03 (from student t table)

margin error =

      =

      =

      =

      = s = 3.04

standard deviation of the sample =  s = 3.04

the central idea is that:

individuals should refuse to cooperate with institutions they believe unjust.

thoreau felt  that governments were more often agents of corruption than justice, even democracies, and that just because the majority feels a certain way does not make it just or correct in absolute terms. he uses the fact that slavery exists in our democracy to support this idea.

he goes on to say that, as a result, people should live true to their own internal laws regarding right and wrong, as a product of reflection and a moral life, rather than following every law that society imposes. 

step-by-step explanation: