Homework Help: statistics

Posted by Bob on Tuesday, October 11, 2011 at 2:28pm.

A sample of 12 measurements has a mean of 20 and a standard deviation of 2. Suppose that the sample is enlarged to 14 measurements, by including two additional measurements having a common value of 20 each.

Find the standard deviation of the sample of 14 measurements.

No one has answered this question yet.

Answer this Question

Related Questions

Statistics - A sample of 12 measurements has a mean of 34 and a standard ...
statistics - A sample of 12 measurements has a mean of 34 and a standard ...
statistics...Please help - A sample of 12 measurements has a mean of 24 and a ...
Statistics - A sample of 12 measurements has a mean of 24 and a standard ...
statistics - Suppose that the percentage returns for a given year for all stocks...
Statistics - Suppose that the percentage returns for a given year for all stocks...
statistics - Suppose that the percentage returns for a given year for all stocks...
Statistics - I have a question that involves explaining what is wrong in each of...
statistics - So if a scale has 30 items in it, and if an individual gets a score...
statistics - So if a depression scale has 30 items in it, and if an individual ...

For Further Reading

First Name:
School Subject:
Answer: