A report claims that at least 79% of lung cancer deaths are due to tobacco use.

Question

A report claims that at least 79% of lung cancer deaths are due to tobacco use. State H_0 and H_a in words and in symbols. Then determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed Explain your reasoning. State the null hypothesis in words and in symbols Choose the correct answer below. A. The null hypothesis expressed in words is, "the proportion of all lung cancer deaths that are due to tobacco use is at least 0.79" The null hypothesis is expressed symbolically as. "H_0: p greaterthanorequalto 0.79." B. The null hypothesis expressed in words is. "the proportion of all lung cancer deaths that are due to tobacco use is 0.79." The null hypothesis is expressed symbolically as. "H_0: p = 0.79." C. The null hypothesis expressed in words is, "the proportion of all lung cancer deaths that are due to tobacco use is not 0.79" The null hypothesis is expressed symbolically as. "H_0: p notequalto 0.79" D. The null hypothesis expressed in words is, "the proportion of all lung cancer deaths that are due to tobacco use is at most 0.79 " The null hypothesis is expressed symbolically as. "H_0: p lessthanorequalto 0.79." State the alternative hypothesis in words and in symbols Choose the correct answer below A. The alternative hypothesis expressed in words is, "the proportion of all lung cancer deaths that are due to tobacco use is more than 0.79" The alternative hypothesis is expressed symbolically as, H_a: p > 0.79" B. The alternative hypothesis expressed in words is, "the proportion of all lung cancer deaths that are due to tobacco use is less than 0.79" The alternative hypothesis is expressed symbolically as, "H_a p =, greaterthanorequalto, lessthanorequalto, notequalto,

Explanation / Answer

4) option D is correct P<=0.79

option A is correct p>0.79

the hypothesis test is right tailed because the alternateive hypothesis contains >

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