A manufacturer makes ball bearings that have a target diameter of 5 mm. Quality control engineers sample ball bearings from a ba
tch to test the hypotheses H 0 : mu=5 mm vs. H a : mu ne5 mi , where u is the true mean diameter of the ball bearings in that batch. Suppose that H 0 is actually true. Which situation below would have the lowest probability of a Type I error?
None of the answers makes sense for me so I would think it would be D. But I’m not the greatest in geometry so don’t quote me on that. Sorry if that didn’t help