8:55 11 StudentA imperial.instructure.comExperiment 1: You believe that caffeine can improvethe capacity of short-term memory (STM). It iswidely known that STM capacity 7 items (m=7)onaverage with a standard deviation of 2 items (s=2).You randomly sampled n=8 participants and havethen drink a large quantity of coffee. Fifteen minuteslater you administer a STM test to each participantand measure the number of items remembered. Thedata are shown below. Use these data to answer thefollowing questions. Excel should be used to obtainthe sample mean, standard deviation and standarderror.Perform a 2-tailed z-test with a=0.05 to determine ifcaffeine influences memory.NumberParticipantof items129374667789 What is the zobserved Value for the hypothesis test?Use absolute value and round to two decimals. Usedata from Experiment 1 to answer this question.

Name: 8:55 11 StudentA imperial.instructure.comExperiment 1: You believe th
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Description: 8:55 11 StudentA imperial.instructure.comExperiment 1: You believe that caffeine can improvethe capacity of short-term memory (STM). It iswidely known that STM capacity 7 items (m=7)onaverage with a standard deviation of 2 items (s=2).You randomly s

Z-test is a hypothesis test in which the z-statistic follows a normal distribution

Answered: Perform a 2-tailed z-test with a=D0.05…

Math

Statistics

Perform a 2-tailed z-test with a=D0.05 to determine if caffeine influences memory.

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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