The u. s. bureau of labor statistics reports that 11.3% of u. s. workers belong to unions (bls website, january 2014). suppose a sample of 400 u. s. workers is collected in 2014 to determine whether union efforts to organize have increased union membership.
a. formulate the hypotheses that can be used to determine whether union membership increased in 2014. h0: p ha: p
b. if the sample results show that 52 of the workers belonged to unions, what is the p-value for your hypothesis test (to 4 decimals)?
c. at α = .05, what is your conclusion?

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Which of the following scenarios is an example of attentional blink? click or tap a choice to answer the question. while grading a student’s essay, a professor does not notice the mistake in the following sentence: “metacognition is the the awareness of one’s own thought processes.” a waiter is telling two friends about the daily specials when a neighboring table erupts in laughter. the friends ask the waiter to repeat the last few items because their attention was diverted by the sudden loud laughs. you watch television while you study for a language exam. the next day, you are unable to recall the majority of the new vocabulary you thought you had memorized. you are at a loud concert, and you are able to concentrate on the music while blocking out the conversations around you, cell phone rings, and other irrelevant stimuli.

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