Answer to Question #210467 in Statistics and Probability for Janna

Question #210467

Performance Task - Hypothesis Testing on Population Mean

Title: Mean Height of Local Adults


Directions: In a national survey by Food and Nutrition Research Institute of the Department of

Science and Technology on April 2014 to adult Filipinos (20 years old and older), the average

height of males is 163 cm with a standard deviation of 6 cm, and the average height of females

is 151.4 cm with a standard deviation of 5 cm. You are a local statistician and you are interested

to know if the average height of the adult males (or females) in your locality is different to the

national average height. Use the knowledge on Hypothesis Testing on Population Mean, and do

the following:


A. Conduct a mini survey in your locality to at least 30 adult males (or females)

For male students, ask for the heights of 30 adult males.

For female students, ask for the heights of 30 adult females.

B. Determine the sample mean height.


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