A speaker who advises managers on how to avoid being unionized claims that only 25%of in...

A speaker who advises managers on how to avoid being unionized claims that only 25%of industrial workers favor union membership, 40% are indifferent, and 35% are opposed. In addition, the adviser claims that these opinions are independent of actual union membership. A random sample of 600 industrial workers yields the following data:

a. What part of the data are relevant to the 25%, 40%, 35% claims?

b. Test this hypothesis using α = .01.