ASSESSMENT

I. State the null and alternative hypothesis for each statement.

1. A medical trial is conducted to test whether or not a new medicine reduces uric acid by 50%.

Ho:

Ha:

2. We want to test whether the general average of students in Math is different from 80%.

Ho:

Ha:

3. We want to test whether the mean height of Grade 8 students is 58 inches.

Ho:

Ha:

II. Determine if one-tailed test or two-tailed test fits the given alternative hypothesis.

1. The mean height of Grade 12 students is less than 66 inches.

2. The standard deviation of their height is not equal to 5 inches.

3. Male Grade 7 and Grade 12 students differ in height on average.

4. The proportion of senior male students' height is significantly higher than that of senior female students.

5. The average of Grade 11 students in Statistics is lower than their average grade in Calculus