Let be the population average gestational age (duration of pregnancy). Our goal is to estimate it using a 95% CI. Answer the following using the given data (column named gest).
Calculate the point estimate.
Estimate SE.
Calculate the critical value.
Calculate a 95% CI for it.
Check your work using the R code below.
data
read
file Choose
head(data)
data$gest
Last
conv01-0
sconf
Multiple choice: Which of the following interpretations is correct? Check all that apply.
There is a 95% chance (probability of 0.95) that the true population average gestational age is between 38.78 and 38.97 weeks.
95% of pregnant women have gestational ages between 38.78 and 38.97 weeks.
At a confidence level of 95%, we estimate that the true population average gestational age is between 38.78 and 38.97 weeks.
If we obtain another sample, there is a 95% chance that the resulting 95% CI will contain the true population average gestational age between 38.78 and 36.47 weeks.