Tweens or teens refers to the age group of students in seventh grade. Growth spurts are very

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€œTweens or teens€ refers to the age group of students in seventh grade. Growth spurts are very common at this age. A sample of 12 randomly selected seventhgrade females in a New York City school resulted in the following heights:
€œTweens or teens€ refers to the age group of students

Assuming heights of females in the 12- to 13-year-age group are normally distributed with a standard deviation of 2.56 inches:
a. What is the parameter of interest?
b. Find the point estimate for the population mean height of seventh-grade females.
c. Find the 0.95 confidence interval for the population mean height of seventh-grade females.

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Elementary Statistics

ISBN: 9780538733502

11th Edition

Authors: Robert R. Johnson, Patricia J. Kuby

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