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the mean exam score for 49 male high school students is 22.2 and the standard deviation is 4. the mean exam score for 55 female high school students...

the mean exam score for 49 male high school students is 22.2 and the standard deviation is 4.6. the mean exam score for 55 female high school students is 19.2 and teh standard deviation is 4.2 at a=.01 can you reject the claim that male and female high school students have equal scores?
1)identify the claim and state H0 and HA
2)find the critical values and identify the rejection region
3)what are the standardized test statistic z.
4)reject or fail to reject null hypothesis.
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The mean exam score for 49 male high school students is 22.2 and the standard deviation is 4.6. the mean exam score for 55 female high school students is 19.2 and the standard deviation is 4.2 at...

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