You are trying to determine if schizophrenics have altered levels of the hormone oxytocin. You take cerebral spinal fluid samples from 20 schizophrenic patients and 20 age and sex matched normal individuals. The levels of oxytocin are measured and compared. Based on this study, which statistical test should be used? Group of answer choices

1 tail paired t test

2 tail paired t test

1 tailed 2 sample t test

2 tailed 2 sample t test

Describe five factors that influence the value of fuel

What’s the student’s scientific question

1. in a certain species of plant, the color purple (p) is dominant to the color white (p). according the punnett square, what is the probability of and offspring being white? 50%25%0%100% 2. in a certain species of plant, the color purple (p) is dominant to the color white (p). according the punnett square, what is the probability of and offspring being white? 0%100%50%25%(picture 1 is for question 1, and picture 2 is for question 2)