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Researchers studying infant head circumferences (i...

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Researchers studying infant head circumferences (in centimeters) wish to test if the mean head circumference differs from the historical mean of 34.5 cm. The researchers obtain a sample of 17 infants with a mean head circumference of 34.16 cm and a standard deviation of 0.58 cm. At the ? = 0.05 significance level, test the claim HO: ? = 34.5 HA: ? ? 34.5 c) State the rule of rejection (in terms of p-value and level of significance) (5 points) d) Find the p-value (5 points) e) Should you reject or not reject HO? (5 points) f) Does the result suggest that the mean head circumference differs from 34.5 cm? (5 points)

 

Paper#13516 | Written in 18-Jul-2015

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