Question
In: Statistics and Probability
Mary, a colleague of yours, wants to test the effectiveness of a new lesson plan on...
Mary, a colleague of yours, wants to test the effectiveness of a new lesson plan on two different groups of students. She wants to perform a t-test, but she is not sure whether to use a paired or unpaired test. Base on the information provided, how would you advise your colleague? If she asked you to perform the calculation for her, how would you use SPSS to do so?
Class, for this DQ, create a hypothetical dataset in SPSS that will allow you to conduct the test, and then discuss your results. Include the SPSS output with your post.
Solutions
orchestra answered 2 years agoRelated Solutions
Mary, a colleague of yours, wants to test the effectiveness of a new lesson plan on...
Mary, a colleague of yours, wants to test the effectiveness of a
new lesson plan on two different groups of students. She wants to
perform a t-test, but she is not sure whether to use a paired or
unpaired test. Base on the information provided, how would you
advise your colleague? If she asked you to perform the calculation
for her, how would you use SPSS to do so? Create data in SPSS and
run it as an example. I...
A sleep disorder specialist wants to test the effectiveness of a new drug that is reported...
A sleep disorder specialist wants to test the effectiveness of a
new drug that is reported to increase the number of hours of sleep
patients get during the night. To do so, the specialist randomly
selects nine patients and records the number of hours of sleep each
gets with and without the new drug. The results of the two-night
study are listed below. Using this data, find the 99% confidence
interval for the true difference in hours of sleep between...
A sleep disorder specialist wants to test the effectiveness of a new drug that is reported...
A sleep disorder specialist wants to test the effectiveness of a
new drug that is reported to increase the number of hours of sleep
patients get during the night. To do so, the specialist randomly
selects nine patients and records the number of hours of sleep each
gets with and without the new drug. The results of the two-night
study are listed below. Using this data, find the 99% confidence
interval for the true difference in hours of sleep between...
A sleep disorder specialist wants to test the effectiveness of a new drug that is reported...
A sleep disorder specialist wants to test the effectiveness of a
new drug that is reported to increase the number of hours of sleep
patients get during the night. To do so, the specialist randomly
selects nine patients and records the number of hours of sleep each
gets with and without the new drug. The results of the two-night
study are listed below. Using this data, find the 90% confidence
interval for the true difference in hours of sleep between...
7. You plan to conduct an experiment to test the effectiveness of Sleepze, a new drug...
7. You plan to conduct an experiment to test the effectiveness
of Sleepze, a new drug that
is supposed to reduce insomnia. You have a sample of 100
subjects.
a. Why is it important to include a placebo in this experimental
design?
b. Describe how you can make this a completely randomized
experiment.
c. What is “blinding” and how might it be used in this
experiment?
d. Why is it important to use blinding in this experiment?
An investigator wants to test the effectiveness of a new weight loss medication at reducing BMI...
An investigator wants to test the effectiveness of a new weight
loss medication at reducing BMI (kg/m2). Suppose the
following table represents the results from a SRS of individuals
enrolled in the study. Assume a normal approximation is acceptable.
(α=.05)(6 points)
Patient
BMI Pre-Test (kg/m2)
BMI Post-Test (kg/m2)
A
30.5
26.5
B
32.8
28.5
C
35.6
28.4
D
34.7
25.7
E
33.9
29.4
A) What type of test design is this?
B) Write our your null and alternative hypotheses.
H0:µd=____ ,Ha:...
A colleague of yours is completing a final report on the causes of the frequency of...
A colleague of yours is completing a
final report on the causes of the frequency of cyberbullying. In
this report, she is asked to identify the causes that most strongly
impacted the frequency of cyberbullying. She conducts an OLS
regression. What statistic do you advise her to use in her
discussion? Why?
* Please show work *
A colleague of yours is completing a final report on the causes of the frequency of...
A colleague of yours is completing a
final report on the causes of the frequency of
cyberbullying. In this report, she is asked to identify
the causes that most strongly impacted the frequency of
cyberbullying. She conducts an OLS
regression. What statistic do you advise her to use in
her discussion? Why?
) A colleague of yours wishes to generate a research idea in the area of supply...
) A colleague of yours wishes to generate a research idea in the
area of supply chain management. He has examined his own strength
and interests on the basis of his assignments and has read some
review articles, but has failed to find an idea about which he is
excited. He comes and asks you for advice. Suggest three (3)
techniques that your colleague could use and justify your
choice.
A colleague of yours is faced with testing a relationship at the .05 level or significance...
A colleague of yours is faced with testing a relationship at the
.05 level or significance or the .01 level of significance. What is
your advice to your colleague? Why?
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