Four students were asked to weigh out 5.000 g of salt. The values they got are...

Four students were asked to weigh out 5.000 g of salt. The values they got are below

Weight (g)
Mary	Scott	Michael	Yen
4.9986	5.0021	5.0001	5.1021
5.0020	5.0020	4.9998	4.9987
5.007	5.0021	4.9999	5.0003
4.9995	5.0022	4.9998	4.9977
Mean: 5.001775	Mean: 5.0021	Mean: 4.9999	Mean 5.0247 :
SD:	SD:	SD:	SD:

Determine the mean and standard deviation for each of the sets of data. Put them in the table above. Using these numbers you should come to the following conclusions:

standard Deviation only needed ti be found

Solutions

Expert Solution

The completed table is attached below:

Explanations:

Let x1, x2, ..., xn be a random sample of size n. The sample standard deviation of ths sample can be calculated using the formula

, ------ equation (1)

where is the sample mean.

The sample standard deviations are calculated using the formula in equation(1). The calculations are tabulated for better understanding. Please find the calculations in the screenshots attached.

orchestra answered 1 year ago

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