Population standard deviation
A random sample of size 30 from a normal population yields ?x(xbar) = 32.8 with a population standard deviation of 4.51. Construct a 95 percent confidence interval for µ
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A piano tuner use a 440 Hz tunning fork to toune a string that is currently vibrating at 445 Hz. How many beats per second does he hear? What other frequencies could produce the same sound effect?
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The length of the major axis of hte track is 1.60 km and the length of the minor axis is 0.80 km. The circumference of the racetrack is 3.87 km. What would be the average velocity and average acceleration of the car from points A to B?
What is one simple way to get around this and get a reasonably accurate experimental value for the acceleration due to gravity?
Histogram to describe the distribution of the net amounts between $0 and $200. (HINT: to decided whether a customer gets a loyalty discount, explore the Excel IF function with the first argument's being a random number RAND() distributed uniformly
Calculate (a) the maximum stress (in MPa) (b) the minimum stress (in MPa) (c) the stress intensity factor range K (in MPa*m^0.5) at the crack tip.
How do you know whether or not an element can be a cathoid or an anode and which cathoids and anodes can be combined. does it have something to do with the sign?
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