Suppose we want to see if American children have higher levels of cholesterol than the average child (i.e., in the entire world - the total population). We find that the population average for cholesterol for children all over the world is 190.We test 25 US children and find an average of 201 with a standard deviation of 10.Conduct a hypothesis with a significance level of 0.05.

What is the test statistic?

10

4.5

2

5.5