Please answer number 5 only ProbabilityEvaluation(One-tailed/Two-tailed)Null Hypothesis(Ho)Alternative Hypothesis(H1)Research Background1. The average IQ of a sample of 1stYear college students and 2nd yearstudents were collected by theresearch team. The team would liketo know if the IQ of 1st year and 2ndyear college students are differentfrom each other2. During an experiment, a treatment isadministered to the sample. Thetreatment is expected to produce adecrease in scores.3. A group of researchers would like toknow whether the amount of timespent watching TV affects the level offocus of children.4. The output of a machine is 300hpbased from the manufacturingmanual. You would like to knowwhether the machine delivers theoutput prescribed in the manual.5. A researcher predicts that CBTdecreases average stress level.

Test is that whether CBT decreases average stress level.

Answered: 5. A researcher predicts that CBT…

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Statistics

5. A researcher predicts that CBT decreases average stress level.

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter13: Probability And Calculus

Section13.2: Expected Value And Variance Of Continuous Random Variables

Problem 10E

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Question

Please answer number 5 only

Probability
Evaluation
(One-tailed/Two-tailed)
Null Hypothesis
(Ho)
Alternative Hypothesis
(H1)
Research Background
1. The average IQ of a sample of 1st
Year college students and 2nd year
students were collected by the
research team. The team would like
to know if the IQ of 1st year and 2nd
year college students are different
from each other
2. During an experiment, a treatment is
administered to the sample. The
treatment is expected to produce a
decrease in scores.
3. A group of researchers would like to
know whether the amount of time
spent watching TV affects the level of
focus of children.
4. The output of a machine is 300hp
based from the manufacturing
manual. You would like to know
whether the machine delivers the
output prescribed in the manual.
5. A researcher predicts that CBT
decreases average stress level.

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