Lena would like to be able to know her exact location on a map as she travels across the country. which technology would
best lena?
cb radio, because it uses hf radio waves
mri, because it uses magnets to produce a picture
radio telescope, because it captures radio waves from space
gps, because it uses satellites thing provide position and velocity data

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)