According to a los angeles times study of more than 1 million medical dispatches from 2007 to 2012, the 911 response time for medical aid varies dramatically across los angeles. (la times website, november 2012). under national standards adopted by the los angeles fire department, rescuers are supposed to arrive within six minutes to almost all medical emergencies. but the times analysis found that in affluent hillside communities stretching from griffith park to pacific palisades, firefighters failed to hit that mark nearly 85% of the time.

the following data show the response times, in minutes, for 10 emergency calls in the griffith park neighborhood.

11.8 10.3 10.7 10.6 11.5 8.3 10.5 10.9 10.7 11.2
based on this sample of ten response times, compute the following descriptive statistics:

a. mean, median, and mode

mean (to 2 decimals)
median (to 1 decimal)
mode (to 1 decimal)
b. range and standard deviation

range (to 1 decimal)
standard deviation (to 4 decimals)
c. should the response time of 8.3 minutes be considered an outlier in comparison to the other response times?

this observation - select your answer -doesdoes notitem 6 appear to be an outlier.

d. do the response times indicate that the city is meeting the national standards?
- select your answer -yesnoitem 7

should the city consider making changes to its response strategies?
- select your answer -yesnoitem 8

would adding more stations to areas in the city be a practical solution?
- select your answer -yesno

Evaluate the given expression if m=45 |-3m|

Which of the following are parts of a sphere

Airplane speeds are measured in three different ways: (1) indicated speed, (2) true speed, and (3) ground speed. the indicated airspeed is the airspeed given by an instrument called an airspeed indicator. a plane’s indicated airspeed is different from its true airspeed because the indicator is affected by temperature changes and different altitudes of air pressure. the true airspeed is the speed of the airplane relative to the wind. ground speed is the speed of the airplane relative to the ground. for example, a plane flying at a true airspeed of 150 knots into a headwind of 25 knots will have a ground speed of 125 knots. the problems below refer to static and dynamic pressure. static pressure is used when a body is in motion or at rest at a constant speed and direction. dynamic pressure is used when a body in motion changes speed or direction or both. a gauge compares these pressures, giving pilots an indicated airspeed. in problem #s 1 and 2, use the following information. the indicated airspeed s (in knots) of an airplane is given by an airspeed indicator that measures the difference p (in inches of mercury) between the static and dynamic pressures. the relationship between s and p can be modeled by s=136.4p√+4.5. 1. find the differential pressure when the indicated airspeed is 157 knots. 2. find the change in the differential pressure of an airplane that was traveling at 218 knots and slowed down to195 knots. in problem #s 3 and 4, use the following information. the true airspeed t (in knots) of an airplane can be modeled by t=(1+a50,000) ⋅ s, where a is the altitude (in feet) and s is the indicated airspeed (in knots). 3. write the equation for true airspeed t in terms of altitude and differential pressure p. 4. a plane is flying with a true airspeed of 280 knots at an altitude of 20,000 feet. estimate the differential pressure. explain why you think your estimate is correct.