Chapter 3, Problem 11P

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9th Edition

Frederick J Gravetter + 2 others

ISBN: 9781337098120

Textbook Problem

A sample of *n =* 8 scores has a mean of *M* = 7. If one score is changed from *X* = 20 to *X* = 4, what is the value of the new sample mean?

To determine

**To Find:** The value of new sample mean when a score is changed from 20 to 4.

Explanation

**Given info:**

A sample of 8 scores has mean 7.

**Calculations:**

Consider the first 6 scores is
^{th} score is,

The formula for sample mean is,

Substitute the values

Sect-3.2 P-1LCSect-3.2 P-2LCSect-3.2 P-3LCSect-3.2 P-4LCSect-3.2 P-5LCSect-3.3 P-1LCSect-3.3 P-2LCSect-3.3 P-3LCSect-3.4 P-1LCSect-3.4 P-2LC

Sect-3.4 P-3LCSect-3.5 P-1LCSect-3.5 P-2LCSect-3.5 P-3LCSect-3.6 P-1LCSect-3.6 P-2LCSect-3.6 P-3LCCh-3 P-1PCh-3 P-2PCh-3 P-3PCh-3 P-4PCh-3 P-5PCh-3 P-6PCh-3 P-7PCh-3 P-8PCh-3 P-9PCh-3 P-10PCh-3 P-11PCh-3 P-12PCh-3 P-13PCh-3 P-14PCh-3 P-15PCh-3 P-16PCh-3 P-17PCh-3 P-18PCh-3 P-19PCh-3 P-20PCh-3 P-21PCh-3 P-22PCh-3 P-23P

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