Business analysis week 2
Question 2
H0: µ=µ Chewing NoCav gum reduces the number of cavities in individuals annually.
HA:µ1≠µ1 Chewing NoCav gum does not reduce the number of cavities in individuals annually (Shi & Tao, 2008).
Question 3
H0: µ=µ Less than 15% of adult males are unemployed.
HA: µ≠µ Less than 15% of adult males are not unemployed (Easton & McColl, 2013).
Question 4
H0: µ=µ Changes in political climate will not affect his 63% support.
HA: µ<µ Changes in political climate will reduce his 63% support.
: µ>µ Changes in political climate will increase his 63% support (Lehmann & Romano, 2005).
References
Easton, V. J. & McColl, J. H. (2013). Statistics Glossary. Retrieved on 17th January, 2013 from http://www.stats.gla.ac.uk/steps/glossary/hypothesis_testing.html
Lehmann, E. L. & Romano, J. P. (2005). Testing Statistical Hypotheses (3rd ed.). New York: Springer Science+ Business Media.
Shi, N-Z., & Tao, J. (2008). Statistical Hypothesis Testing: Theory and Methods. China: World Scientific.
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