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Use a 0.05 significance level to test the claim females and males have the same mean...

Use a 0.05 significance level to test the claim females and males have the same mean BMI.

Female BMI

n=70

x̄ =29.10

s= 7.39

Male BMI

n=80

x̄ =28.38

s= 5.37

Critical Values: z0.005 = 2.575, z0.01 = 2.325, z0.025 = 1.96, z0.05 = 1.645  

When d.f.=7: t0.005 = 3.499, t0.01 = 2.998, t0.025 = 2.365, t0.05 = 1.895  

When d.f.=69: t0.005 = 2.648, t0.01 = 2.381, t0.025 = 1.994, t0.05 = 1.667

Math   Statistics-And-Probability   
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