Chapter 3, Problem 19P

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8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

A sample of *n = 9* scores has a mean of *M =* 20. One of the scores is changed and the new mean is found to be *M =* 22. If the changed score was originally *X* = 7, what is its new value?

To determine

**To Find:** The value of the new changed score.

Explanation

**Given info:**

A sample of 9 scores has a mean 20. The new mean after changing a score

**Calculations:**

The formula for the mean is:

Substitute

Let the value of new score changed be x instead of original value 7

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

Sect-3.3 P-2LCSect-3.3 P-3LCSect-3.5 P-1LCSect-3.6 P-1LCSect-3.6 P-2LCSect-3.6 P-3LCSect-3.6 P-4LCCh-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-23PCh-3 P-24PCh-3 P-25PCh-3 P-26PCh-3 P-27P

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