What is the researchers null hypothesis

Reference no: EM133277327

Case: A researcher is interested in whether drinking different sources of caffeine (tea vs. coffee) leads to differences in women's attentional control performance. She decides to put up flyers at Her Gym locations around Texas to recruit participants. People can read the flyer and contact her to participate if they are interested in the study. She decides to have participants take an attention task called "Simon task" after drinking either 2 cups of black tea or after drinking 2 cups of regular coffee. She randomly assigns her participants to either the tea or the coffee beverage condition. After collecting and analyzing the data, she obtains a p = .027.

Question 1: What is the researcher's scientific/alternative hypothesis?

Question 2: What is the researcher's null hypothesis?

Question 3:What type of sample is the researcher using? And what is a disadvantage to using this sample type?

Question 4:What can the researcher conclude about these data?

Question 5:If, in the population, women actually show NO difference in attentional control performance after drinking black tea versus coffee, what type of statistical error has the researcher made?

Reference no: EM133277327

Questions Cloud

How does approach help william with his attitude : How does approach help William with his attitude toward group project and be more responsible for homeowork and assessment submission

Divulge the student records without approval : Which of the following guarantees the college will not divulge the student's records without his/her approval?

Discuss what children actually learn when they are spanked : Discuss what children actually learn when they are spanked and why this might be harmful and What are some effective alternatives that would be more effective

What is organizational culture and how is it created : What is organizational culture, and how is it created? What is it made of? How does organizational/workplace culture influence the workplace

What is the researchers null hypothesis : PSYC 3201 University of Texas, El Paso What is the researcher's scientific/alternative hypothesis and What type of sample is the researcher using?

What is paralegal role in trial preparation : What is the paralegal's role in trial preparation and the necessary skills with regard to such work.

Discuss in depth a variety of key problems : Discuss in depth a variety of key problems facing the Philippines and other countries, and provide instances of each

Charter of rights and freedoms protect : How does the Charter of Rights and Freedoms protect citizens from unlawful search and seizure?

Explain how breach of the charter of rights : A court declares that a law that has been determined to violate the Charter does not apply to a particular situation.

User Account

All Pages