COMMERCE 2QA3 Study Guide - Type I And Type Ii Errors, Null Hypothesis, Pearson Education
16 Dec 2014
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Chapter 13: confidence intervals and hypothesis tests for means. 76 85 70 76 79 81 73 74 72 83: write the null and alternative hypotheses. Answer: h0 : = 77 and ha : > 77. : 2: in this context, describe the type i error possible. Answer: a type i error would be concluding that the average life expectancy has increased, when in fact it has not. The company would change its premium structure when it was not necessary. Answer: a type ii error would be failing to detect an increase in the average life expectancy, when in fact it has. The company would miss an opportunity to change its premium structure when it was necessary. Copyright 2014 pearson canada inc: state your conclusion using = 0. 05. Answer: we fail to reject the null hypothesis. Abi insurance shouldn"t need to change their premiums because there is little evidence to indicate an increase in average life expectancy.
