a. Activity 1 Identify whether the following is a null hypothesis or an alternative hypothesis.

1. The average age of grade eleven students is 17 years old.

2. There is a significant difference between the population mean and the sample mean.

3. The average monthly salary of private school teachers is less than Php 16 000

4. The mean weight of newborn babies is 0.5 kg.

5. The average IQ of grade twelve students is greater than 108

6. The average weekly allowance of SHS students is equal to Php 100.

7. The average weight loss for a sample of people who exercise 30 minutes per day for 6 weeks is

equal to 3.7kg

8. The average typing speed of a secretary is 23.8 words per minute.

9. The average number of vehicles passing through SCTEX daily is greater than 20 000

10. There is no significant difference between the means of the two populations.

b. Activity 2 dentify whether the following is a directional or non directional or cannot be determine.

1. The average number of vehicles passing through SCTEX is less than 25,000

2.There is a significant difference between the means of the two populations

3. The average monthly income of the Filipino families who belong to low income bracket is Pho 8 000

4.The average typing speed of a secretary is 23.8 given words per minute.

5. The average weekly allowance of SHS students is not equal to Php 100