Parameter, null hypothesis in symbol, alternative hypothesis in symbol, directional or non directional, level of significance,. 1. A college dean claims that a bachelor's degree should be earned in an average of five years. Test the claim using 95% confidence level.
2. The young engineers in a manufacturing company claim that the mean annual income is greater than php 500,000. Test the claim using 95% confidence level
1. The parameter is average time in years.
This corresponds to a two-tailed (non directional) test.
The level of significance is
2. The parameter is the mean annual income.
This corresponds to a right-tailed one-tailed (directional) test.
The level of significance is
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