Question

Suppose Julio is a veterinarian who is doing research into the weight of domestic cats in his city. He collects information on 188 cats and finds the mean weight for cats in his sample is 10.97 lb with a standard deviation of 4.41 lb. What is the estimate of the standard error of the mean (SE)

Answer 1

The standard error of the mean is 0.3216

Explanation:

We are given the following in the question:

Sample size, n = 188

Sample mean =

`\bar{x}= 10.97\text{ lb}`

Sample standard deviation =

`s = 4.41\text{ lb}`

We have to estimate the standard error of the mean.

Formula for standard error:

`S.E = (s)/(√(n))`

Putting values, we get,

`S.E =(4.41)/(√(188)) = 0.3216`

Thus, the standard error of the mean is 0.3216