Explore BrainMass
Share

The Association Between Maternal Age and Birth Weight

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

See the attached file.

A small pilot study is being conducted to determine the association between maternal age and birth weight.

First, from all the single births in 2009 at Hospital X with mothers aged less than or equal to 20 years, we randomly selected 15 records. We also selected randomly 17 records from all the single births with mothers aged > 20 years. Then we classified each newborn as weighting less than or equal to 2500 grams or > 2500 grams.

a) State the relevant null and alternative hypotheses.
b) Using a type I error level of 0.05, perform the appropriate statistical test.
c) Explain your results in 2-3 sentences.
d) If we extended the study and randomly selected 230 records from all the single births in 2009 at Hospital X (the data is shown below), would the maternal age be related to the birth-weight of the infant? Conduct test of hypothesis. Interpret the results.

© BrainMass Inc. brainmass.com October 25, 2018, 6:44 am ad1c9bdddf
https://brainmass.com/statistics/hypothesis-testing/association-maternal-age-birth-weight-473415

Attachments

Solution Summary

The solution provides step by step method for the calculation of chi square test for association. Formula for the calculation and Interpretations of the results are also included. Interactive Excel sheet is included. The user can edit the inputs and obtain the complete results for a new set of data.

$2.19
See Also This Related BrainMass Solution

Systematic Influences on Personality Development

Can you help me with the following:

Examine systematic influences on personality development by exploring the following personal factors:

Abuse
Cognitive Abilities

(One or two more subtopics need to be listed)

*This section will need three or four sentences introducing the influence of personal factors. Please use the subheadings to allow for thorough information.

View Full Posting Details