8 Answered Questions for the topic deviation
What is the proportion
It is estimated that the mean life span of concrete drill bits is 20 hours. Suppose a construction company purchases drill bits that have a lifespan that is approximately normally distributed with... more
Percent Deviation from Ideality
Using the Ideal Gas equation I calculated a temperature of 162K, and with the Van der Waals equation 177K. I need to find the percent deviation from ideality. Is this correct? 177-162 x... more
Would it be unusual for one of the test subjects to have a pulse rate of 127.8 beats per minute?
A certain group of test subjects had pulse rates with a mean of 84.6 beats per minute and a standard deviation of 11.6 beats per min. For some reason, I keep getting the incorrect answer for... more
find the standard deviation
SS = 120 and score or (n) is 30. how do I compute the standard deviation with no individual scores. Variance is 4.14
Consider a nationally recognized standardized college admissions test with scores that are normally distributed, centered at a mean of 21, and have a standard deviation of 4.5. Use the 68-95-99.7... more
How to do these questions?
The heart rates for puppies are normally distributed, with a mean heart rate of 180 beats per minute (60-160 beats per minute for most adult dogs) with a standard deviation of 6 bpm (beats per... more
15. The National Football League (NFL) polls fans to develop a rating for each football game
15. The National Football League (NFL) polls fans to develop a rating for each football game (NFL website, October 24, 2012). Each game is rated on a scale from 0 (forgettable) to 100 (memorable).... more