Question

Researchers conducted a study to examine the association of clinical factors at birth with sudden infant death syndrome (SIDS) (Platt et al., 2000). The researchers randomly sampled the medical records of infants who died of SIDS from a large database. The study found 50 infants who required resuscitation at birth in 321 medical records, which produced a 90% confidence interval of 0.08 ± 0.02.

What can the researchers conclude about this confidence interval?
Researchers are________ certain that the interval (0.06,0.10) contains the proportion of 10% 90% 95 % 5% Adapted from Platt, M Archives ofDisease in' ning P. J; et al. Clinical Comparison Of SIDS And Explained Sudden Infant Deaths: How Healthy And How Normal?

Answer 1

Researchers are 90% certain that the interval (0.06,0.10) contains the proportion.

Explanation:

x% confidence interval:

A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.

90% confidence interval of 0.08 ± 0.02.

Thus:

Researchers are 90% certain that the interval (0.06,0.10) contains the proportion.