A researcher is examining depression questionnairescores for individuals who are taking a newdepression medication.She knows the population data on the questionnaire ism = 58,s =7.5. She administers a new anti-depression medication to depressed patients and has them take the depression questionnaire.She wants to know if the depression medication decreases their depression scores.Test ata= .01.

Which of the following is correct for the Null hypothesis?

A.) H₁: mean is greater than or equal to 58

B.) H₁:_{mean is less than or equal to 58}

C.) H₀:_{mean is greater than or equal to 58}

D.) H₀:_{mean is less than or equal to 58}