Use the One-Standard-Deviation Chi-Square Interval Procedure to Obtain the Specified

question 85

Multiple Choice

Use the one-standard-deviation chi-square interval procedure to obtain the specified confidence interval for thepopulation standard deviation Ϭ. Assume that the population has a normal distribution.
-A sociologist develops a test to assess attitudes about public transportation, and 27 randomly selected subjects are given the test. Their mean score is 76.2 and their standard deviation is 21.4.
Construct a 95% confidence interval for the standard deviation, Ϭ, of the scores of all subjects.

• A)17.5 to 27.8
• B)16.9 to 29.3
• C)16.6 to 28.6
• D)17.2 to 27.2

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Definitions:

Genetic Distance

Genetic distance is a measure of how different populations are from each other genetically. Genetic distance can inform population geneticists about levels of inbreeding within a population or about the historic relationships between populations or species.

Population

A group of individuals of the same species living in the same area at the same time, capable of interbreeding.

Time Separated

A phenomenon or process that is distinguished by a period of time, leading to a divergence in development or outcome.

Hardy-Weinberg Equilibrium

A principle stating that the genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors.