Over the past 40 years, the percentage of homes in the United States with smoke detectors has risen steadily and has plateaued at about 95% (National Fire Protection Association website, January, 2015). With this increase in the use of home smoke detectors, what has happened to the dea rate from home fires? The DATAfile SmokeDetectors contains 17 years of data on the estimated percentage of homes with smoke detectors and the estimated home fire deaths per million of population. Click on the datafile logo to reference the data. DATA file a. Do you expect a positive or negative relationship between smoke detector use and deaths from home fires? Why or why not? The input in the box below will not be graded, but may be reviewed and considered by your instructor.
b. Compute the correlation coefficient (to 4 decimals). If required enter negative value as negative number.
Is there a positive or negative correlation between smoke detector use and deaths from home fires?