the birth weight (gm) of the infants between MEG and HEG ? H0: ________________________________     H1: ________________________________   State the name of the test:   Test Statistic:   Define the rejection region:   Calculate the p-value:   Conclusion in context of the study:

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The effects of high- and medium-intensity exercise on the fetus and on the onset and length of labor, birth weight, and Apgar score were studied in healthy athletes who performed a high level of exercise before conception.

Below is a table of 42 women were recruited to the study by newspaper ads and through acquaintances (also known as snowball sampling). They elected to follow either a high- or a medium-intensity exercise program throughout pregnancy until 6 weeks after delivery. Below is a table comparing the two different exercise regimes medium-intensity (MEG) and high-intensity (HEG) on selected neonatal characteristics.

Using the information in the table, test whether there is a statistically significant population mean difference in the birth weight (gm) of the infants between MEG and HEG ?

H0: ________________________________

 

 

H1: ________________________________

 

State the name of the test:

 

Test Statistic:

 

Define the rejection region:

 

Calculate the p-value:

 

Conclusion in context of the study:

 

Table III. Effect of medium- and high-intensity exercise during pregnancy on maternal and neonatal characteristics
MEG
HEG
Parameter
No.
Mean
SD
Na.
Mean
SD
Maternal weight (kg)
Week 17 during pregnancy
Six weeks after labor
Skinfold thickness (mm)
Average during pregnancy
Six weeks after labor
Onset of labor (wk)
All women
Primiparous women
Secundiparous women
Multiparous women
Duration of labor (hr)
Normal delivery
Instrumental deliveryt
Cesarean section
20
20
64.4
63.2
6.1
6.1
65.8
9.3
20
19
64.6
9.2
16.6
15.9
13.4
12.7
60
54.7
56.9
55.2
58
20
20
53.9
21
19
39.9
39.8
1.2
1.2
21
15
5
39.6
39.7
39.2
1.6
1.5
1.9
2
40.0
41
5.9
3.4
17
6.7
5.5
18
9.4
11.7
Not recorded
3
2.6
8.0
Not recorded
3590.5
Birth weight (gm)
Placental weight (gm)
1 min Apgar score
5 min Apgar score
3660.7
709.7
515.8
88.7
0.6
21
532
137.2
0.9
0.5
21
19
21
21
20
21
21
643.3
84
9.1
8.8
9.4
0.5
MEG, Medium-intensity exercise group; HEG, high-intensity exercise group.
*Sum of skinfolds of triceps, suprailiac, and thigh.
+Vacuum or outlet forceps. (In medium-intensity group, two vacuum and one outlet forceps; in high-intensity group, one vacuum and
one outlet forceps,)
Transcribed Image Text:Table III. Effect of medium- and high-intensity exercise during pregnancy on maternal and neonatal characteristics MEG HEG Parameter No. Mean SD Na. Mean SD Maternal weight (kg) Week 17 during pregnancy Six weeks after labor Skinfold thickness (mm) Average during pregnancy Six weeks after labor Onset of labor (wk) All women Primiparous women Secundiparous women Multiparous women Duration of labor (hr) Normal delivery Instrumental deliveryt Cesarean section 20 20 64.4 63.2 6.1 6.1 65.8 9.3 20 19 64.6 9.2 16.6 15.9 13.4 12.7 60 54.7 56.9 55.2 58 20 20 53.9 21 19 39.9 39.8 1.2 1.2 21 15 5 39.6 39.7 39.2 1.6 1.5 1.9 2 40.0 41 5.9 3.4 17 6.7 5.5 18 9.4 11.7 Not recorded 3 2.6 8.0 Not recorded 3590.5 Birth weight (gm) Placental weight (gm) 1 min Apgar score 5 min Apgar score 3660.7 709.7 515.8 88.7 0.6 21 532 137.2 0.9 0.5 21 19 21 21 20 21 21 643.3 84 9.1 8.8 9.4 0.5 MEG, Medium-intensity exercise group; HEG, high-intensity exercise group. *Sum of skinfolds of triceps, suprailiac, and thigh. +Vacuum or outlet forceps. (In medium-intensity group, two vacuum and one outlet forceps; in high-intensity group, one vacuum and one outlet forceps,)
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