Worksheet - One-tailed or Two - tailed Hypotheses

For the following items, indicate if it would be One-tailed or Two-Tailed Hypothesis and write both the null and alternative hypothesis of the study.

1.IQ scores for private school students are different than those for public school students.

2.Married couples without children get more sleep than married couples with children.

3.The median income for an individual in North Carolina is greater than the median income for an individual in South Carolina.

4.Attention span is different for children under the age of 10 as compared to adults over the age of 18.

5.The typical resident of New York drives less each month than the typical resident of Los Angeles.