QUESTION 21 "Lula-Rae Inc. claims that ingesting a concoction of lemon and lavender essential oils will significantly elevate mood in consumers. To test this, a skeptical premedical student selects a sample of 144 participants. Each participant drinks a mixture of the essential oils and then completes a mood inventory. The population score on this mood inventory has a mean = 101 with a standard deviation = 24. The sample of n = 144 participants had a mean score of M = 103. Calculate the z-observed value that would result from this hypothesis test (Be sure to round your answer to the second decimal place). "
QUESTION 21 "Lula-Rae Inc. claims that ingesting a concoction of lemon and lavender essential oils will significantly elevate mood in consumers. To test this, a skeptical premedical student selects a sample of 144 participants. Each participant drinks a mixture of the essential oils and then completes a mood inventory. The population score on this mood inventory has a mean = 101 with a standard deviation = 24. The sample of n = 144 participants had a mean score of M = 103. Calculate the z-observed value that would result from this hypothesis test (Be sure to round your answer to the second decimal place). "
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
21
![A random sample of n = 169 scores is selected from a population whose mean = 195 and standard deviation = 32. What is the probability that the sample's mean will
be between M = 193 and M = 197 ? (Please input answer as a probability with four decimal places).
QUESTION 20
"A clinican has found a significant effect of a new drug and wants to know the effect size. If the population mean =45 with a standard deviation = 16.5 and the clinical
observed a sample ofn= 64 had a mean = 41, then what would be the effect size in terms of Cohen's d?"
O 0.24
O -0.24
O 1.94
O -1.94
QUESTION 21
"Lula-Rae Inc. claims that ingesting a concoction of lemon and lavender essential oils will significantly elevate mood in consumers. To test this, a skeptical premedical
student selects a sample of 144 participants. Each participant drinks a mixture of the essential oils and then completes a mood inventory. The population score on this
mood inventory has a mean = 101 with a standard deviation = 24. The sample of n = 144 participants had a mean score of M = 103. Calculate the z-observed value that
would result from this hypothesis test (Be sure to round your answer to the second decimal place). "
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Transcribed Image Text:A random sample of n = 169 scores is selected from a population whose mean = 195 and standard deviation = 32. What is the probability that the sample's mean will
be between M = 193 and M = 197 ? (Please input answer as a probability with four decimal places).
QUESTION 20
"A clinican has found a significant effect of a new drug and wants to know the effect size. If the population mean =45 with a standard deviation = 16.5 and the clinical
observed a sample ofn= 64 had a mean = 41, then what would be the effect size in terms of Cohen's d?"
O 0.24
O -0.24
O 1.94
O -1.94
QUESTION 21
"Lula-Rae Inc. claims that ingesting a concoction of lemon and lavender essential oils will significantly elevate mood in consumers. To test this, a skeptical premedical
student selects a sample of 144 participants. Each participant drinks a mixture of the essential oils and then completes a mood inventory. The population score on this
mood inventory has a mean = 101 with a standard deviation = 24. The sample of n = 144 participants had a mean score of M = 103. Calculate the z-observed value that
would result from this hypothesis test (Be sure to round your answer to the second decimal place). "
マー
%
L
T.
G
H]
F
B
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