- Cardiologists Use The Short Range Scaling Exponent Which Measures The Randomness Of Heart Rate Patterns As A Tool To 1 (43.53 KiB) Viewed 84 times
long-term measurement from the short-term measurement. Round the
answers to three decimal places.
b. Compute the error standard deviation
estimate s. Round the answer to three decimal
places.
c. Compute a 95% confidence interval for the slope. Round
the answers to three decimal places.
d. Find a 95% confidence interval for the mean long-term
measurement for those with short-term measurements of 1.2. Round
the answers to three decimal places.
e. Find a 95% prediction interval for the long-term
measurement for a particular individual whose short term
measurement is 1.2. Round the answers to three decimal places.
Cardiologists use the short-range scaling exponent , which measures the randomness of heart rate patterns, as a tool to assess risk of heart attack. The article "Applying Fractal Analysis to Short Sets of Heart Rate Variability Data” compared values of a computed from long series of measurements (approximately 40,000 heartbeats) with those estimated from the first 300 beats to determine how well the long-term measurement (1) could be predicted the short-term one (*). Following are the data (obtained by digitizing a graph). Short Long 0.52 0.65 1.02 0.79 1.4 0.81 0.88 0.9 1.68 1.05 1.16 1.05 0.82 1.05 0.93 1.07 1.26 1.1 1.18 1.19 0.81 1.19 0.81 1.2 1.28 1.23 1.18 1.23 0.71 1.24