Answered: Hypothesis Testing -Age of Oldest…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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Hypothesis Testing -Age of Oldest Person: The SUNY Oneonta Office of Old Folks maintains that the mean age of the oldest person known to current undergraduate students (aged 18-25 yrs.) is 97 years. Recently a sample of 74, 18-25 yr. old students identified the age of the oldest person they knew. The mean age was 93.04 yrs. with a standard deviation of 7.10 yrs., a median age of 93.00 yrs., a range of 73 to 112 yrs., and a skew for the data of .22. Do the current data support the Office of Old Folks’ mean? For your answer, SELECT THE APPROPRIATE HYPOTHESES.

	A.	H₀: µ = 93.04 yrs. H_a: µ ≠ 93.04 yrs.
	B.	H₀: µ = 97.00 yrs. H_a: µ ≠ 97.00 yrs.
	C.	H₀: µ = 93.04 yrs. H_a: µ > 93.04 yrs.
	D.	H₀: µ = 97.00 yrs. H_a: µ > 97.00 yrs.
	E.	H₀: µ = 93.04 yrs. H_a: µ < 93.04 yrs.
	F.	H₀: µ = 97.00 yrs. H_a: µ < 97.00 yr

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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