Question: Hand span is defined as the maximum distance between the tips of the thumb and little finger. Hand span (cm) was compared for a random

Hand span is defined as the maximum distance between the tips of the thumb and little finger. Hand span (cm) was compared for a random sample of 26 boys and 29 girls of the same age. From the results, a 95% confidence interval for the average difference (boys - girls) in hand span between the genders was calculated as 1.16 to 1.87cm. Choose the most correct interpretation of the interval.

a) We can be 95% confident that average hand span for girls is between 1.16 and 1.87cm larger than the average hand span for boys.

b)We can be 95% confident that average hand span for boys is between 1.16 and 1.87cm.

c)We can be 95% confident that average hand span for girls is between 1.16 and 1.87cm.

d) The average hand span for all boys is between 1.16 smaller and 1.87cm larger than the average hand span for all girls.

e) We can be 95% confident that average hand span for boys is between 1.16 and 1.87cm larger than the average hand span for girls.

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