Write the null and alternative hypotheses for the following example. Determine i

Question

Write the null and alternative hypotheses for the following example. Determine if the example is a case of a two-tailed, a left-tailed, or a right-tailed test. To test if the mean length of experience of airport security guards is different from 3 years.

1. H 0 : = 3 years, H 1 : < 3 years, left-tailed test

2. H 0 : 3 years, H 1 : = 3 years, right-tailed test

3. H 0 : 3 years, H 1 : > 3 years, two-tailed test H 0 : = 3 years,

4. H 1 : 3 years, two-tailed test H 0 : = 3 years, H 1 : > 3 years, right-tailed test

Explanation / Answer

H0 : = 3 years

H1 : 3 years

This is a two-tailed test.

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