Asked by Kiran
In a 60 MA Economics students selected as sample are found to have a mean height of 68 inches and a
50 MBS students selected as sample have a mean height of 69 inches. Would you conclude that
management students are taller than economics students? Assume that standard derivation of height of
post graduate students to be 2.24 inches.
50 MBS students selected as sample have a mean height of 69 inches. Would you conclude that
management students are taller than economics students? Assume that standard derivation of height of
post graduate students to be 2.24 inches.
Answers
Answered by
PsyDAG
Z = (mean1 - mean2)/standard error (SE) of difference between means
SEdiff = √(SEmean1^2 + SEmean2^2)
SEm = SD/√n
If only one SD is provided, you can use just that to determine SEdiff.
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability
related to the Z score.
SEdiff = √(SEmean1^2 + SEmean2^2)
SEm = SD/√n
If only one SD is provided, you can use just that to determine SEdiff.
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability
related to the Z score.
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