A. Of the following, which is the most appropriate hypothesis testing procedure for this study design? Paired t-test Two sample independent t-test with equal variances Two sample independent t-test with unequal variances Analysis of Variance (ANOVA)   B. Please write and interpret the appropriate confidence interval corresponding the the study question of interest.

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A. Of the following, which is the most appropriate hypothesis testing procedure for this study design?

Paired t-test
Two sample independent t-test with equal variances
Two sample independent t-test with unequal variances
Analysis of Variance (ANOVA)
 
B. Please write and interpret the appropriate confidence interval corresponding the the study question of interest.
 
Suppose a researcher is interested in the effectiveness of a new respiratory treatment drug aimed at
increasing forced vital capacity (FVC) among children with respiratory illnesses. In this study, each patient
test both before and after treatment. The table below represents the FVC for each participant before and
after treatment.
Participant FVC pre-treatment FVC post-treatment
84
91
89
87
84
80
81
A
B
с
DEF
Variable
The results of ther study are below:
postFVC
preFVC
diff
Obs
6
6
6
90
Ho: mean (diff) =
= 0
87
88
82
86
Ha: mean (diff) < 0
Pr(T<t) = 0.9838
Mean
87.33333
84.16667
mean (diff) = mean (postFVC
3.166667
-
Std. Err.
1.308094
1.400397
1.077549
preFVC)
Std. Dev. [95% Conf. Intervall
3.204164
3.430258
2.639444
83.97077
80.56683
Ha: mean (diff) != 0
Pr(|T| > |t|) = 0.0323
.3967397
degrees of freedom =
90.6959
87.7665
5.936594
t = 2.9388
5
Ha: mean (diff) > 0
Pr(T> t) = 0.0162
Please write and interpret the appropriate confidence interval corresponding the the study question of
interest.
Transcribed Image Text:Suppose a researcher is interested in the effectiveness of a new respiratory treatment drug aimed at increasing forced vital capacity (FVC) among children with respiratory illnesses. In this study, each patient test both before and after treatment. The table below represents the FVC for each participant before and after treatment. Participant FVC pre-treatment FVC post-treatment 84 91 89 87 84 80 81 A B с DEF Variable The results of ther study are below: postFVC preFVC diff Obs 6 6 6 90 Ho: mean (diff) = = 0 87 88 82 86 Ha: mean (diff) < 0 Pr(T<t) = 0.9838 Mean 87.33333 84.16667 mean (diff) = mean (postFVC 3.166667 - Std. Err. 1.308094 1.400397 1.077549 preFVC) Std. Dev. [95% Conf. Intervall 3.204164 3.430258 2.639444 83.97077 80.56683 Ha: mean (diff) != 0 Pr(|T| > |t|) = 0.0323 .3967397 degrees of freedom = 90.6959 87.7665 5.936594 t = 2.9388 5 Ha: mean (diff) > 0 Pr(T> t) = 0.0162 Please write and interpret the appropriate confidence interval corresponding the the study question of interest.
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