1. Dr. Alito is testing the effect of a particular drug on how fast rats will complete a maze. He knows the average time it takes a rat to finish this maze is 46 seconds. He gives 4 rats the drug and tests them in the maze and finds that their mean time is 11 seconds with a SS = 1,741. What is the estimated standard error (s_M) for this sample? Round your answer to two decimal places.

2. Dr. Alito is testing the effect of a particular drug on how fast rats will complete a maze. He knows the average time it takes a rat to finish this maze is 80 seconds. He gives 10 rats the drug and tests them in the maze and finds that their mean time is 37 seconds with a SS = 2,181. What is the calculated t-value for this sample? Round your answer to two decimal places. Do not include + signs if your answer is positive; include a - if your answer is negative.

3. A researcher tests a drug that she predicts will increase the number of white blood cells produced. She collects data from 28 patients and calculates a t-value. Assuming = .01, to what critical t-value should she compare her calculated value? Round your answer to two decimal places; include a negative sign when appropriate but not a positive sign for positive numbers.

4. A researcher tests a drug that she predicts will lower the number of seizures that patients with a particular disorder experience. She collects data from 22 patients and calculates a t-value. If = .05 and the researcher's calculated t-value is -1.96, what decision should the researcher make?

5. A researcher tests a drug that she predicts will lower the number of seizures that patients with a particular disorder experience. She collects data, conducts a single sample t-test and rejects the null hypothesis. What does her finding mean in words?

Question 5 options:

	The sample who took the drug did not have a lower number of seizures than patients in the general population.
	The sample who took the drug had a lower number of seizures than patients in the general population.

USE THIS TABLE FOR REFERENCE FOR 3RD AND 4TH QUESTION