Madam Hooch is testing out a new model of broomstick called the Starlight 900 for the players of her Quidditch team. She knows that the mean number of blocks for a Keeper is 49. She counts the number of blocks for 6 Keepers on the new broom and finds a mean of 25 with a variance of 147.86. What is the estimated standard error for the Keepers' blocks on the new broom model?

(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 92 seconds. He gives 7 rats the drug and tests them in the maze and finds that their mean time is 13 seconds with a SS = 1,019. 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 lower the number of seizures that patients with a particular disorder experience. She collects data from 30 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 12 patients and calculates a t-value. If = .05 and the researcher's calculated t-value is -2.0, 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 fails to reject the null hypothesis. What does her finding mean in words?

Question 5 options:

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