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Chapter 12

ECO220Y1 Chapter 12 Notes
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Department
Economics
Course
ECO220Y1
Professor
Jennifer Murdock
Semester
Winter

Description
ECO220Y1 Textbook Notes Chapter 12: Testing Hypotheses About Proportions 12.1 Hypotheses • Null hypothesis: the claim being assessed in a hypothesis test. o For a claim to be a testable null hypothesis, it must specify a value for  some population parameter that can form the basis for assuming a  sampling distribution for a test statistic.  o Denoted  H 0 p=p 0 . • Alternative hypothesis: the hypothesis that proposes what we should conclude if  we find the null hypothesis to be unlikely. o Two­sided alternative: an alternative hypothesis is two­sided when we’re  interested in deviations in either direction away from the hypothesized  parameter value.  Denoted  H :Ap≠ p 0 .  P is the probability of deviating in either direction. o One­sided alternative: an alternative hypothesis is one­sided when we’re  interested in deviations in only one direction away from the hypothesized  parameter value.  Denoted  H :Ap>p 0  or  H :Ap
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