1. A researcher is investigating the effects of a new drug on the ability of rats to learn to navigate a maze. She is worried that differences in activity levels might influence the results, so she give them a baseline activity test and matches them to form eight pairs. One group is then given the drug and the other group a placebo. Here are the results in terms of number of trials it took each pair to navigate the maze without any errors. Pair Placebo Drug 1 4 2 4 2 3 5 4 7 4 5 3 2 6. 5 7 4 8 6. 3 (a) Formally state the null and alternative hypotheses and perform the hypothesis at the .05 level of significance.

1. A researcher is investigating the effects of a new drug on the ability of rats to learn to navigate a maze. She is worried that differences in activity levels might influence the results, so she give them a baseline activity test and matches them to form eight pairs. One group is then given the drug and the other group a placebo. Here are the results in terms of number of trials it took each pair to navigate the maze without any errors. Pair Placebo Drug 1 4 2 4 2 3 5 4 7 4 5 3 2 6. 5 7 4 8 6. 3 (a) Formally state the null and alternative hypotheses and perform the hypothesis at the .05 level of significance.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

100%

Hello can someone help me with this question please?

For A. I have muD=0 and Ha:muD not equal to 0, I have my SD bar= 0.456 and my t-calc= 3.51, and i have the null being rejected. For B I have the values of CI being ( 2.725,0.525)

1. A researcher is investigating the effects of a new drug on the ability of rats to learn to navigate
a maze. She is worried that differences in activity levels might influence the results, so she give
them a baseline activity test and matches them to form eight pairs. One group is then given the
drug and the other group a placebo. Here are the results in terms of number of trials it took each
pair to navigate the maze without any errors.
Pair Placebo Drug
4
4
2
3
5
5
4
7
4
5
3
5
7
4
5
8.
6
3
(a) Formally state the null and alternative hypotheses and perform the hypothesis at the .05 level
of significance.
(b) Compute the effect size and the 95% confidence interval

(a) Formally state the null and alternative hypotheses and perform the hypothesis at the .05 level
of significance.
(b) Compute the effect size and the 95% confidence interval
(c) Explain what makes this a dependent samples design?

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