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You are interested in wage gender differences. You have a random sample of the population. The...

You are interested in wage gender differences. You have a random sample of the population. The sample mean hourly wage for men is KSH 22 while it is KSH 19 for women. The standard deviations of these samples are respectively, 6.1 and 7.1. How can you calculate the standard error of the difference in means?
A. It is (6.1/number of men in the sample) + (7.1/number of women in the sample)
B. It is the square root of (7.1 – 6.1)
C. It is the square root of (6.12/number of men in the sample) + (7.12/number of women in the sample)
D. It is (6.12 + 7.12)

math   Statistics-And-Probability   
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Answer #1

It is the square root of (6.12/number of men in the sample) + (7.12/number of women in the sample) (C)

[ given data are:-

the standard error of the difference in means is:-

]

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