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This question was created from STAT 200_Final_Exam_Spring_2019_OL1.pdf

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This question was created from STAT 200_Final_Exam_Spring_2019_OL1.pdf
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19. A health educator was interested in determining whether college students at her college really do gain*
weight during their freshman year . A random sample of’S college students was chosen and the weight
for each student was recorded in August ( the beginning of the freshman year ) and May ( the End of
the freshman year ) . Does the data below suggest that college students gain weight during their
freshman year ? The health Educator wants to use a 0.05 significance level to test the claim*
Weight ( pounds )
Student*
August
May
18 2
170
175
135
1401
4
102
150
In
200
200
( a )
What is the appropriate hypothesis test to use for this analysis ? Please identify and explain why
it is appropriate .*
( b )
LET HI = mean weight in May . LET ME = mean weight in August . Which of the following
statements correctly defines the null hypothesis ?"
HI – HI = D [He = 0 ]
( 1 1 )
HI – HI = D ( Hi = 10]
( lil )
HI – 12 = OLME = Oj
LET HI = mean weight in May . LET ME = mean weight in August . Which of the following*
statements correctly defines the alternative hypothesis ?"
( 1 )
HI – 12 = DIME = 0]
( 1 1 )
HI – H= = DIME = 0]
( 111 )
HI – H2 = OTHA = 0 ]
( P )
Determine the test statistic . Round Your answer to three decimal places . Describe method used*
for obtaining the test statistic .
( e )
Determine the p-value . Round Your answer to three decimal places . Describe method used for
obtaining the D-Value .
( I )
Compare p-value and significance level a. What decision should be made regarding the null
hypothesis (F .E. . reject or fail to reject ) and why ?
What do the results of this study tell us about freshman college student weight gain ?" Justify your*

 
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