Scientific Method and Decision Making Flashcards
What is the null hypothesis?
The difference between the experimental and control groups is the product of chance
Do you accept or reject the null hypothesis? Explain your answer.
Accept the null hypothesis if the p-value is greater than 0.05.
What is the alternate hypothesis?
The difference between the experimental and control groups is the product of something other than chance.
Do you accept or reject the alternate hypothesis? Explain your answer.
Reject the alternate hypothesis if the p-value is greater than 0.05
What is the initial hypothesis in this laboratory exercise?
An aqueous extract of tree tobacco leaves will inhibit the growth of radish seedlings
Do you accept or reject the initial hypothesis? Explain your answer.
Reject the initial hypothesis if the confidence is less than 95%
If randomization analysis showed that tree tobacco extract inhibited seedling germination, would that prove that Nicotina glauca leaves possess allelotoxins? Explain your answer.
No, because other components in the tree tobacco extract could inhibit seedling growth and we can’t prove it is the nicotine glauca leaves
