130k views
2 votes
A simple random sample of 64 observations was taken from a large population. the sample mean and the standard deviation were determined to be 320 and 120 respectively. the estimated standard error of the mean is

2 Answers

4 votes
2110...................
User Otieno Rowland
by
9.0k points
5 votes

Answer:

The estimated standard error of the mean is 15

Explanation:

The standard error a sample mean is given by the following formula:


SE = (s)/(√(n))

In which s is the standard deviation of the sample and n is the size of the sample.

In this problem, we have that:


s = 120, n = 64.

So


SE = (120)/(√(64)) = 15

The estimated standard error of the mean is 15

User Marco Moschettini
by
8.5k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories