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Use the following to answer the questions below:In a given year, the average score on the ...

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Use the following to answer the questions below:In a given year, the average score on the ...

Use the following to answer the questions below:

In a given year, the average score on the Mathematics portion of the ACT for males was 21.3 with standard deviation 5.3. The average score on the Mathematics portion of the ACT for females was 20.2 with standard deviation 4.8.

If random samples are taken with 60 males and 60 females, find the standard error of the distribution of differences in sample means,

where

_m and

_f represent the sample means for males and females, respectively. Report the standard error with four decimal places.

Textbook

Statistics: Unlocking the Power of Data

Edition: 3^rd

Authors: Lock, Morgon

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