a. Do the results indicate a significantly higher estr- mated speed for the "smashed into" group? Use a one-tailed test with a = .01. %3D b. Compute the estimated value for Cohen's d to measure the size of the effect.
a. Do the results indicate a significantly higher estr- mated speed for the "smashed into" group? Use a one-tailed test with a = .01. %3D b. Compute the estimated value for Cohen's d to measure the size of the effect.
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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Please help with these three parts. ? Thank you!

Transcribed Image Text:Write a sentence demonstrating how the results of
Pelqmsina
с.
Write a sentence demonstrating how the results of
the hypothesis test and the measure of effect size
would appear in a research report.

Transcribed Image Text:10. In 1974, Loftus and Palmer conducted a classic s
college students watched a film of an automobile
mated speed for the "smashed into" group? Use a
demonstrating how the language used to ask a ques-
tion can influence eyewitness memory. In the study,
accident and then were asked questions about what
the cars going when they smashed into each other?"
they saw. One group was asked, "About how fast were
study
Another group was asked the same question excent
the verb was changed to "hit" instead of "smashed
into." The "smashed into" group reported signifi-
cantly higher estimates of speed than the "hit"
group.
Suppose a researcher repeats this study with a sample
of today's college students and obtains the following
results.
Estimated Speed
Smashed into
Hit
n = 15
n = 15
M = 40.8
М 3 34.0
SS = 510
SS = 414
a. Do the results indicate a significantly higher esti-
one-tailed test with a =
= .01.
b. Compute the estimated value for Cohen's d to
measure the size of the effect.
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