Is the average hemoglobin at admission less than 12.5? A: HO: the average hemogl

ID: 3240190 • Letter: I

Question

Is the average hemoglobin at admission less than 12.5?

A: HO: the average hemoglobin at admissionis significantly less than 12.5 or HO: the average hemoglobin at admission = 12.5

Ha: The average hemoglobin at admission is not significantly less than 12.5.

Is this one or two sided?

B: HO: the average hemoglobin at admission is significantly less than 12.5 or HO: the average hemoglobin at admission = 12.5

Ha: The average hemoglobin at admission is not significantly greater than 12.5.

C: HO: the average hemoglobin at admission is not significantly less than 12.5 or HO: the average hemoglobin at admission = 12.5

Ha: The average hemoglobin at admission is significantly less than 12.5.

D: HO: the average hemoglobin at admission is not significantly greater than 12.5 or HO: the average hemoglobin at admission = 12.5

Ha: The average hemoglobin at admission is significantly less than 12.5.

It is one sided hypothesis.

Right answer is C)

Our null hypothesis is the assumption that there is no change

And we reject it if we get statistically significant evidence for alternative hypothesis.

So, C is the correct Choice

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