Question 1032215: BMI. Body mass index (BMI) = weight in lbs/height inches^2 x 703. An adult BMI of 24 is considered desirable.i A study of 12 adults that used a one-sample t-test to address Ho: u = 24 reported a tstat of 2.16.
a) What is the one-sided P-value for this test?
b) What is the two-sided P-value?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! BMI. Body mass index (BMI) = weight in lbs/height inches^2 x 703. An adult BMI of 24 is considered desirable.i A study of 12 adults that used a one-sample t-test to address Ho: u = 24 reported a tstat of 2.16.
a) What is the one-sided P-valu#e for this test?
b) What is the two-sided P-value?
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If Ho is u = 24, Ha is u # 24
This is not a one-sided test
If Ha is u < 24
the p-value is P(t < 2.16 when df = 11) = tcdf(-100,2.16,11) = 0.9731
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If Ha is u > 24
the p-value is P(t > 2.16 when df = 11) = tcdf(2.16,100,11) = 0.0269
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b) What is the two-sided P-value?
t-stat = 2.16
2-sided p-value = 2*P(t > 2.16 when df = 11) = 2*tcdf(2.16.100,11)
= 2*0.0269 = 0.0537
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Cheers,
Stan H.
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