Q2_ELEMENTS OF HYPOTHESIS TESTING

This is an inference about a population parameter that is assumed to be true.

• Hypothesis

• Null Hypothesis

• Alternative Hypothesis

• Assumption

It is a type of hypothesis that is always stated as a statement of inequality.

• Hypothesis

• Null Hypothesis

• Alternative Hypothesis

• Non-directional Test

A nutritionist claims that her developed bread is fortified with vitamin B.

• Two-Tailed

• One-Tailed, Right-Tailed

• One-Tailed, Left-Tailed

A musician believes that listening to classical music affects mood.

• Two-Tailed

• One-Tailed, Right-Tailed

• One-Tailed, Left-Tailed

A storekeeper thinks that time of a day influences sale of ice cream.

• Two-Tailed

• One-Tailed, Right-Tailed

• One-Tailed, Left-Tailed

A mother wants to prove that reading books to children improves their thinking processes.

• Two-Tailed

• One-Tailed, Right-Tailed

• One-Tailed, Left-Tailed

A certain combination of fruits provides the daily requirement for Vitamin C.

• Two-Tailed

• One-Tailed, Right-Tailed

• One-Tailed, Left-Tailed

6.A bridal magazine claims that the average age of a groom is 26.4. Richard, who is 25 years old, wants to verify if it is true. He randomly selected 25 of his officemates and asked the age they got married. What should be the null hypothesis?

• Ho:  μ=26.4

• Ho:  μ≤26.4

• Ho:  μ≠26.4

• Ho:  μ≥26.4

A bridal magazine claims that the average age of a groom is 26.4. Richard, who is 25 years old, wants to verify if it is true. He randomly selected 25 of his officemates and asked the age they got married. What should be the alternative hypothesis?

• Ha:  μ=26.4

• Ha:  μ≤26.4

• Ha:  μ≠26.4

• Ha:  μ≥26.4

A new diet program claims that a person who undergoes the program will lose at least 4 kilos in two weeks. Divine wants to try the program but is afraid that the program is a sham. She wants to do a statistical test on the said program. What should she use as null hypothesis?

• Ho:  μ=4

• Ho:  μ≤4

• Ho:  μ≠4

• Ho:  μ≥4