List the four steps of hypothesis testing

Reference no: EM13996277

Textbook - STATISTICS for the BEHAVIORAL SCIENCES BY Gregory J. Privitera

1. List the four steps of hypothesis testing, and explain the procedure and logic of each.

2. Based on the information given for the following studies, decide whether to reject the null hypothesis. Assume that all populations are normally distributed. For each, give:

a. The Z-score cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected.

b. The Z-score on the comparison distribution for the sample score.

c. Your conclusion.

Study	µ	σ	Sample Score	p	Tails of Tests
A	5	1	7	0.05	1 (high predicted)
B	5	1	7	0.05	2
C	5	1	7	0.01	1 (High predicted)
D	5	1	7	0.01	2

3. A researcher predicts that listening to music while solving math problems will make a particular brain area more active. To test this, a research participant has her brain scanned while listening to music and solving math problems, and the brain area of interest has a percentage signal change of 58. From many previous studies with this same math problem's procedure (but not listening to music), it is known that the signal change in this brain is normally distributed with a mean of 35 and a standard deviation of 10.

Using the .01 level, what should the researcher conclude?

a. Solve this problem explicitly using all four steps of hypothesis testing,

b. Illustrate your answer with a sketch showing the comparison distribution, the cutoff (or cutoffs), and the score of the sample on this distribution.

c. Explain your answer to someone who has never had a course in statistics (but who is familiar with mean, standard deviation, and Z scores).

Reference no: EM13996277

Questions Cloud

What pretax amounts did s&l include in its 2011 and 2012 : What pretax amounts did S&L include in its 2011 and 2012 earnings as a result of this investment?

How much work was done by friction between b and c : How much work was done by friction between B and C? If the coefficient of kinetic friction between the mass and the rough surface is 0.53, how far will it travel before coming to rest?

What effect did this dividend have on turner : What effect did this dividend have on Turner's 2011 financial statements? Explain the reasoning for this effect.

What is the force felt by the wire when the electron passes : Suppose a single electron "travels" through the wire at 80% the speed of light. What is the force felt by the wire when the electron passes through the midpoint?

List the four steps of hypothesis testing : List the four steps of hypothesis testing, and explain the procedure and logic of each. Based on the information given for the following studies, decide whether to reject the null hypothesis. Assume that all populations are normally distributed. Fo..

Evaluate legal ethical and cultural implications : In this Application Assignment you review some case studies related to evidence-based practice and search for published research that could guide your decision making. You also evaluate legal, ethical, and cultural implications for your decision.

25ml of 50/50 isoproanol and water : Draw the mechanism for the Sn1 reaction for step 2 in the procedure using 2-bromo propane as the starting material. Label the nucleophile and the electrophile throughout the mechanism.

When park adjusts its investment revenue and the investment : When Park adjusts its investment revenue and the investment by the equity method, how will the situation described affect those two accounts?

Develop the preliminary design for a steam power plant : Develop the preliminary design for a steam power plant. The plant must produce 1000 MW of electricity using water as the working fluid and a supercritical pressure of 24 MPa.

User Account

All Pages