Steps for Hypothesis testing: 1. Write down what’s given i.e. sample standard deviation, sample size, population proportion 2. Figure out what table & formula you should use 3. Draw the picture! Left tail is less than Right tail is greater than Two tail is equal to or not equal to 4. Use the tables to find the critical value and add it to the picture Use α to find the critical value in a one tailed test Use 5. Write the hypothesis a.
The null hypothesis H b.
The alternative hypothesis has either a less
than sign <, greater than sign> or not equal sign 6.
Use formula to find the test statistic 7. Decide whether to reject or fail to reject the null hypothesis. If the test statistic falls in the shaded critical region, reject the null hypothesis If the test statistic does NOT fall in the shaded critical region, “Fail to reject” the null hypothesis 8. State your conclusion:
Source: Triola,
M. F. (2003). |

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