Transcription of Using R: Chapter 8 Hypothesis Testing - One Sample
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Using R: Chapter 8 Hypothesis Testing - One Sample
1 Using R: Chapter 8 Hypothesis Testing - One SampleHere we get critical values and P-values for Hypothesis tests about proportions and means. Tests about a Proportion Using the test Tests about a Proportion Tests about a mean ( unknown) Using the test statisticptandqt3 Tests about a mean ( unknown) - From Raw Tests about a mean ( known) Using the test statisticpnormandqnorm4 Tests about a Proportion Using the Test Statistic =z p= p p pqnSignificance Level = Critical Values =z or z /2 Finding critical valueswith theqnormfunctionUsage: Critical Value =qnorm(area to the left) Left-Tailed Tests:z =qnorm( ) Right-Tailed Tests:z =qnorm(1 ) Two-Tailed Tests:z /2= qnorm(1 /2) FindingP-valueswith :P-value =pnorm(z p, = ). Left-Tailed Tests:P-value =pnorm(z p, ) Right-Tailed Tests:P-value =pnorm(z p, ) Two-Tailed Tests:P-value =2 * pnorm( abs(z p), )2 Tests about a Proportion usingxandn FindingP-valueswith (x, n, p=, correct=, alternate = ).
Using R: Chapter 8 Hypothesis Testing - One Sample Here we get critical values and P-values for hypothesis tests about proportions and means. Tests about a Proportion using the test statistic pnorm and qnorm. 1 Tests about a Proportion using xand n prop.test 2 Tests about a mean (˙unknown) using the test statistic pt and qt 3
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