HYPOTHESIS TESTING CHAPTER 8 Section 8.1 - 8.2 - Large ...

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statistical test of hypothesis is a method for decidingwhich of the two hypotheses is correct and is basedon the method of proof by contradiction. It iscomposed of the following five parts:1) The Null Hypothesis, denoted by H0.2) The Alternate Hypothesis, denoted by Ha.3) The Test Statistic, denoted by T.S.4) The Rejection Region or the CriticalRegion, denoted by R.R.5) The Conclusion.
Let us start with an example: Recall the MichelinTires example. Assume now that you buy the tiresfrom Firestone and that they claim that the meanlifetime of their tires is 41,000 miles. You are notsure and feel that µ < 41000 miles. As before, youtest 44 tires and find that x = 40,321 miles and s =2,144 miles.1) The hypothesis that you are trying to prove iscalled the alternate hypothesis. So here you aretrying to show thatHa :(always contains a , or a ≠ sign.)2) The contradiction of the alternate hypothesisis called the null hypothesis.Here H0 : µ(note that the null hypothesis always contains the= sign)
Page 1: HYPOTHESIS TESTINGCHAPTER 8Section
Page 5 and 6: What are the two most common courtr
Page 7 and 8: Test Statistic: The test statistic
Page 9 and 10: In General:For n large enough, a fi
Page 11 and 12: Some more examples:example 2: A sup
Page 13: example 4: A psychologist is intere

HYPOTHESIS TESTING CHAPTER 8 Section 8.1 - 8.2 - Large ...

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