If you select an alpha of 0.05 and a power of 0.80 for your study and your indep

Question

If you select an alpha of 0.05 and a power of 0.80 for your study and your independent t-test for the difference in the mean serum potassium level of kidney dialysis patients and kidney transplant patients has a p value of 0.02. You know this means: There is a significant difference between the two groups. There Is a significant difference between the two groups but you did not find it. You need to increase the sample size in your study In order to increase the power. You did not have enough power to find a difference between the two groups.

Explanation / Answer

As alpha = 0.05, and P = 0.02, then as P < 0.05, we reject Ho.

Hence,

OPTION A: There is a signiificant difference between the groups. [ANSWER]

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