A random sample of size 16 is drawn from a nor- mal distribution having σ = 6.0 for the purpose of test- ing H0: µ = 30 versus H1: µ = 30. The experimenter chooses to deine the critical region C to be the set of sample means lying in the interval (29.9, 30.1). What level of signiicance does the test have? Why is (29.9, 30.1) a poor choice for the critical region? What range of y values should comprise C, assuming the same α is to be used?

Kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energy b. motion energy c. sound energy d. thermal energy

Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.

Which of the following is a direct benefit of the use of assembly lines in production a. laws against theft fraud and coercion are needed to protect free choice. b. the government needs to plan efficient outcomes. c. competition among producers by itself cannot ensure a wide range of consumer choices. d. works pressure the government to guarantee minimum wages