Question

A researcher is interested in what influences a nation’s infant mortality rate. She hypothesizes that greater wealth and resource availability influences the infant mortality rate, and collected data from 6 nations to investigate this. A nation’s level of wealth and resource availability is measured as its GDP per capita in $1,000s, and its infant mortality rate is calculated as number of infant deaths per 1,000 births. Country name Infant mortality rate GDP per capita (in $1,000s) Argentina 9.7 12.7 Bahamas 6.1 30.3 Barbados 11.9 15.9 Belize 12.8 4.9 Bolivia 29.0 3.1 Brazil 14.6 8.6

d) Interpret the results you obtained in c)

. e) If a county has GDP per capita of $6,200, what do the results of the analysis here predict for that country’s infant mortality rate? Show all of your work.

f) What other country-level variables may influence a country’s infant mortality rate? Give at least one and explain why you think this variable influences the infant mortality rate.

Answer 1

d) Interpret the results you obtained in c)

Where's part c)?

. e) If a county has GDP per capita of $6,200, what do the results of the analysis here predict for that country’s infant mortality rate? Show all of your work.

y = 21.2843 - 0.5776*x

Put y = 6.2

6.2 = 21.2843 - 0.5776*x

x = 26.12

f) What other country-level variables may influence a country’s infant mortality rate? Give at least one and explain why you think this variable influences the infant mortality rate.

These factors include international differences in how live births are recorded, differences in rates of low birth weight and short gestational age births, and racial and ethnic IMR disparities.