SS = 160 2098 Use an independent-measures t test with a two-tailed, to determine whether there is a significant ifference between the two types of high school student. bol = .01, 15 8. Does posting calorie content for menu items affect npeople's choices in fast-food restaurants? According to results obtained by Elbel, Gyamfi, and Kersh (2011), the answer is no. The researchers monitored the calorie content of food purchases for children and adolescents in four large fast-food chains before and after mandatory labeling began in New York City. Although most of the haadolescents reported noticing the calorie labels, appar- ho ently the labels had no effect on their choices. Data simi- lar to the results obtained show an average of M = 786 || calories adolescents before the labeling, compared to an average of M = 772 calories withs= 91 for a similar sample of n = 100 children after the mandatory posting. per meal with s = 85 for n = 100 children and %3D %3D a. Use a two-tailed test with a = .05 to determine whether the mean number of calories after the posting is significantly different than before calorie content was posted. b. Calculate r to measure effect size for the mean d difference. 9. A long history of psychology research has demon- strated that memory is usually improved by studying material on multiple occasions rather than one time only. This effect is commonly known as distributed еcent papрer exam- 8. a Step I HoiMater - Moeton = 0 after - M befon = 0 HaiMater- Mbefre 0 Stap 2. dfir 99 dfa-99 dfaew 198 total L=0,05.The critical value > tl980 Step 3: 3,=(85)*- h-1 99 3==(1) 5=83.65 99 12.98+83.65 2. =0.19 99+99 2. Sm, 1-M2) 0.0158 i. (Mi-M_)-(Mi-M) 186-112 t: 986-192 Scminma) 0.0158
SS = 160 2098 Use an independent-measures t test with a two-tailed, to determine whether there is a significant ifference between the two types of high school student. bol = .01, 15 8. Does posting calorie content for menu items affect npeople's choices in fast-food restaurants? According to results obtained by Elbel, Gyamfi, and Kersh (2011), the answer is no. The researchers monitored the calorie content of food purchases for children and adolescents in four large fast-food chains before and after mandatory labeling began in New York City. Although most of the haadolescents reported noticing the calorie labels, appar- ho ently the labels had no effect on their choices. Data simi- lar to the results obtained show an average of M = 786 || calories adolescents before the labeling, compared to an average of M = 772 calories withs= 91 for a similar sample of n = 100 children after the mandatory posting. per meal with s = 85 for n = 100 children and %3D %3D a. Use a two-tailed test with a = .05 to determine whether the mean number of calories after the posting is significantly different than before calorie content was posted. b. Calculate r to measure effect size for the mean d difference. 9. A long history of psychology research has demon- strated that memory is usually improved by studying material on multiple occasions rather than one time only. This effect is commonly known as distributed еcent papрer exam- 8. a Step I HoiMater - Moeton = 0 after - M befon = 0 HaiMater- Mbefre 0 Stap 2. dfir 99 dfa-99 dfaew 198 total L=0,05.The critical value > tl980 Step 3: 3,=(85)*- h-1 99 3==(1) 5=83.65 99 12.98+83.65 2. =0.19 99+99 2. Sm, 1-M2) 0.0158 i. (Mi-M_)-(Mi-M) 186-112 t: 986-192 Scminma) 0.0158
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
Since the numbers are very strange, I would like to ask if what I am doing is correct?
Transcribed Image Text:SS = 160 2098
Use an independent-measures t test with a
two-tailed, to determine whether there is a significant
ifference between the two types of high school student.
bol
= .01,
15
8. Does posting calorie content for menu items affect
npeople's choices in fast-food restaurants? According to
results obtained by Elbel, Gyamfi, and Kersh (2011),
the answer is no. The researchers monitored the calorie
content of food purchases for children and adolescents
in four large fast-food chains before and after mandatory
labeling began in New York City. Although most of the
haadolescents reported noticing the calorie labels, appar-
ho ently the labels had no effect on their choices. Data simi-
lar to the results obtained show an average of M = 786
||
calories
adolescents before the labeling, compared to an average
of M = 772 calories withs= 91 for a similar sample of
n = 100 children after the mandatory posting.
per meal with s = 85 for n = 100 children and
%3D
%3D
a. Use a two-tailed test with a = .05 to determine
whether the mean number of calories after the
posting is significantly different than before calorie
content was posted.
b. Calculate r to measure effect size for the mean
d difference.
9. A long history of psychology research has demon-
strated that memory is usually improved by studying
material on multiple occasions rather than one time
only. This effect is commonly known as distributed
еcent papрer exam-
Transcribed Image Text:8.
a
Step I HoiMater - Moeton = 0
after - M
befon = 0
HaiMater- Mbefre 0
Stap 2. dfir 99 dfa-99 dfaew 198
total
L=0,05.The critical
value > tl980
Step 3:
3,=(85)*-
h-1
99
3==(1)
5=83.65
99
12.98+83.65
2.
=0.19
99+99
2.
Sm,
1-M2)
0.0158
i.
(Mi-M_)-(Mi-M) 186-112
t:
986-192
Scminma)
0.0158
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