# stats help

## Project Description:

seminar three critical thinking exercises
due: tuesday
points: 20 (10 for each cte)
1.) use and apply real data and information to evaluate a problem.
2.) use proper statistical methods to make decisions.
3.) demonstrates how statistical methods are used in a real application.
cte 7: designing aircraft seating
the sitting distance is defined as the distance from the seat back cushion to the seat in front. it accommodates the buttock-to-knee length plus any additional space to provide comfort.
determining this distance is very important. if the distance is too large, space is wasted and rows of seats may be eliminated. it is estimated that eliminating a single row of seats in an aircraft can cost around 8 million dollars over its life. if the distance is too small, passengers will be uncomfortable and may choose a different airline.
use the data in the table to determine the required seating distance. the following choices must be carefully made.
1) should the entire population be accommodated? if not, what percentage of the population are you willing to exclude? explain your reasoning.
2) how much extra room are you providing for the passengers comfort? explain.
3) use the given information to determine the sitting distance. identify the choices and decisions that were made in that determination.
the following data is a summary from measurements of large numbers of people.
buttock-to-knee length
mean standard deviation distribution
males 23.5 in. 1.1 in. normal/_/_
females 22.7 in. 1.0 in normal/_/_
source: elementary statistics, triola, 11th edition
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