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Use the Following

Question 121

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Use the following
In 2005, 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 120 males and 105 females, find the mean and standard error of the distribution of differences in sample means, Use the following In 2005, 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 120 males and 105 females, find the mean and standard error of the distribution of differences in sample means, , where and represents the sample means for males and females, respectively. Report your standard error with four decimal places. , where Use the following In 2005, 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 120 males and 105 females, find the mean and standard error of the distribution of differences in sample means, , where and represents the sample means for males and females, respectively. Report your standard error with four decimal places. and Use the following In 2005, 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 120 males and 105 females, find the mean and standard error of the distribution of differences in sample means, , where and represents the sample means for males and females, respectively. Report your standard error with four decimal places. represents the sample means for males and females, respectively. Report your standard error with four decimal places.

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mean: 1.1
...

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