Thursday
May 23, 2013

# Homework Help: Statistics

Posted by Jen on Thursday, April 29, 2010 at 3:13pm.

A sample of 12 measurements has a mean of 34 and a standard deviation of 4.5. Suppose that the sample is enlarged to 14 measurements, by including two additional measurements having a common value of 34 each.

A. Find the mean of the sample of 14 measurements.

Mean =

B. Find the standard deviation of the sample of 14 measurements.

Standard Deviation =

• Statistics - PsyDAG, Friday, April 30, 2010 at 9:53pm

Since the two additional scores = the mean, the mean and the standard deviation will not change.

• Statistics - Anonymous, Sunday, May 2, 2010 at 7:19pm

WRONG!

• Statistics - Anonymous, Wednesday, May 5, 2010 at 2:44am

 First Name: School Subject: Answer:

Related Questions

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 20 and a standard ...
Statistics - A sample of 12 measurements has a mean of 24 and a standard ...
statistics - population mean=42.6 standard deviation=12 n=16 M=34.4. Is this ...
Statistics - The standard deviation of GPAs (grade point averages) of all male ...
statistics - Suppose a random sample of 36 is selected from a population with a ...
statistics - A student was asked to compute the mean and standard deviation for ...
Statistics - Juan makes a measurement in a chemistry laboratory and records the ...
statistics - Suppose that the percentage returns for a given year for all stocks...

Search
Members
Community
FEATURES