Jamisha is solving the equation 4(x - 2) = 34for z. Her work is shown in the table. Step Step 1 Step 2 Step 3 Answer Equation 4(x - 2) = 34 4x - 2 = 34 4x = 36 x = 9 Reason Given Distributive Property Addition Property Division Property Did Jamisha make a mistake in solving the equation , and why? Jamisha made a mistake between vand V because she did not correctly

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.