what is the value of the standard error sm?(see picture below for reference) Experiment 1: You believe that caffeine can improve the capacity of short-term memory (STM). It iswidely known that STM capacity 7 items (m=7)on average with a standard deviation of 2 items (s=2).You randomly sampled n=8 participants and have then drink a large quantity of coffee. Fifteen minuteslater you administer a STM test to each participant and measure the number of items remembered.The data are shown below. Use these data to answer the following questions. Excel should be used toobtain the sample mean, standard deviation and standard error.Perform a 2-tailed z-test with a=0.05 to determine if caffeine influences memory.NumberParticipantof items1931746.5,670 ue of the standard error sm? Round to three deciestion.

Given that We want to test the hypothesis that the average number of items is significantly…

Answered: e standard error sm?(s

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e standard error sm?(s

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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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

what is the value of the standard error sm?(see picture below for reference)

Experiment 1: You believe that caffeine can improve the capacity of short-term memory (STM). It is
widely known that STM capacity 7 items (m=7)on average with a standard deviation of 2 items (s=2).
You randomly sampled n=8 participants and have then drink a large quantity of coffee. Fifteen minutes
later you administer a STM test to each participant and measure the number of items remembered.
The data are shown below. Use these data to answer the following questions. Excel should be used to
obtain the sample mean, standard deviation and standard error.
Perform a 2-tailed z-test with a=0.05 to determine if caffeine influences memory.
Number
Participant
of items
1
9
3
17
4
6.
5,
670

ue of the standard error sm? Round to three deci
estion.

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