STAT151 Chapter Notes - Chapter 16-17: Null Hypothesis, Statistical Parameter, Statistic

• School: University of Alberta
• Department: Statistics
• Course: STAT151
• Professor: Rosana Fok

Document Summary

Example: suppose p is the probability to get a head while flipping a coin. To test if eric"s claim is true, amy took a random sample size of 1000 and showed 400 heads. phead = 400/1000 = 0. 4. Method for using sample statistics to decide between 2 competing claims on: define the variable, parameters or interests and any relevant assumptions, state the null hypothesis (h o ) and alternative hypothesis (h a , gather the evidence (sample). Based on the data in the sample, we will calculate a test: assess the strength of the evidence against the null hypothesis in favor of the alternative. statistic. This will be done by finding the p-value: make decision based on step 4, state the conclusion. A is a claim about population parameter that will be true only when we. (ho) - claim about a population parameter that is assumed to be true until declared.