# Lab #17-Hypothesis, p-values, and alpha levelsFor problems 1-4, write the null and alternative hypotheses you would use to test each.A governor is concerned about his "negatives"-the percentage of state residents who expressdisapproval of his job performance. His political committee pays for a series of TV ads, hopingthat they can keep the negatives below 30%. They will use follow-up polling to assess the ads,effectiveness1.Ho:Ha:2.Is a coin fair?Ho:Ha:Only about 20% of people who try to quit smoking succeed. Sellers of a motivational tape claimthat listening to the recorded messages can help people quit.3.Ho:Ha:In the 1950s only about 40% of high school graduates went on to college. Has the percentagechanged?4.Ho:Ha:

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Null hypothesis: It is used in hypothesis test which proposes that there is no significant difference among variables. If there is a single variable, then it is not different than its mean or proportion.

Alternate Hypothesis: It is used in hypothesis test to contradict the...

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