This preview shows page 1. Sign up to view the full content.
Unformatted text preview: Hypothesis Testing Steps 1. Determine H o and H 1 . 2. Determine the test statistic / test value using the flow chart. * 3. Determine the decision rule. 4. Make a decision 5. Write a conclusion. s z Critical Value 0.10 0.05 0.025 0.01 0.005 Value 1.28 1.645 1.96 2.33 2.58 For lefttailed test, use the negative of the value in the above table. Ex.) Use 1.28 instead of 1.28 For twotailed test, calculate the value of 2 . Then look that up in the above table. Ex.) =0.05. Then 2 =0.025 Look up 0.025 in the chart & get 1.96 as the value. Technically, you will have 2 critical values. +1.96 & 1.96. *If your is not listed in the chart, find the z in Table E using methods in chapter 6 & 7. s t Critical Values Go to the tdistribution chart. Notice underneath Confidence Intervals you see One tail, and Two tails, . For one tail that is the for the onetailed test. If you need a twotailed test, two tail is what your must be in order to use that value. must be in order to use that value....
View Full
Document
 Spring '09

Click to edit the document details