Candidates for promotion at a city police department are required to take a written aptitude test. Scores on this test are normally distributed with a mean of 230 and a standard deviation of 50. A random sample of 9 test scores was taken. (a)What is the standard error of the sample mean score

Pepe is going to spin the following spinner 800 times. the spinner is divided into equal sections.a. exactly 160 timesb. clost to 160 times but probably not exactly 160 timesc. exactly 640 timesd. close to 640 times but not probably not exactly 640 times. me

True or false? many triangular shapes can be circumscribed about a given circle

Select the correct answer from each drop-down menu. rewrite the formula to find voltage. the formula for electrical power (p, in watts) is where v is the voltage in volts and r is the resistance in ohms. for a particular brand of water heater, r is 32 ohms and p is 0.5 watts. the formula to find v is , and the voltage at which the heater operates is volts.