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The Head Circumference Is Measured for 25 Girls and Their

Question 58

Multiple Choice

The head circumference is measured for 25 girls and their twin sisters. What is the value of the multiplier t* for a 90% confidence interval for the difference in mean head circumference between girl twins?


A) 1.68
B) 2.02
C) 1.71
D) 2.06

Correct Answer:

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