You set an alpha level at 0.05. After running a Two-sample T-test to compare the

Question

You set an alpha level at 0.05. After running a Two-sample T-test to compare the average medical expenses of patients with congestive heart failure versus those with chronic obstructive pulmonary disease, you obtain a p-value of 0.04. What conclusions can you make from these results?

a.) There is no difference in the average medical expenses of patients with congestive heart failure versus those with chronic obstructive pulmonary disease

b.) The null hypothesis was accepted

c.)  There is a difference in the average medical expenses of patients with congestive heart failure versus those with chronic obstructive pulmonary disease

d.)  The alternative hypothesis was rejected.

a.) There is no difference in the average medical expenses of patients with congestive heart failure versus those with chronic obstructive pulmonary disease

b.) The null hypothesis was accepted

c.)  There is a difference in the average medical expenses of patients with congestive heart failure versus those with chronic obstructive pulmonary disease

d.)  The alternative hypothesis was rejected.

Explanation / Answer

Since the p - value is less than 0.05, we reject Ho. Hence,

There is a difference in the average medical expenses of patients with congestive heart failure versus those with chronic obstructive pulmonary disease.

Option C is correct.

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