Essay
A parent believes the average height for 14-year-old girls differs from that of 14-year-old boys. Estimate the difference in height between girls and boys, using a 95% confidence interval. The summary data are listed below. Based on your interval, do you think there is a significant difference between the true mean height of 14-year-old girls and boys? Explain.
14-year-old girls' summary data: 
= 40, 
= 155 cm, 
= 6.1 cm
14-year-old boys' summary data: 
= 40, 
= 146 cm, 
= 9.1 cm
Correct Answer:
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= (155 - 146) (1.96)(1.732) ...View Answer
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Correct Answer:
Verified
= (155 - 146) (1.96)(1.732) ...View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
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