Question: A decade-old study found that theproportion, p , of high school seniors who believed that getting rich was an important personal goal was70%. A researcher

A decade-old study found that theproportion,p, of high school seniors who believed that "getting rich" was an important personal goal was70%. A researcher decides to test whether or not that percentage still stands. He finds that, among the210high school seniors in his random sample,154believe that "getting rich" is an important goal. Can he conclude, at the0.01level of significance, that theproportion has indeed changed?

Perform a two-tailed test. Then fill in the table below.

Carry your intermediate computations to at least three decimal places and round your answers as specified in the table.

The null hypothesis: H0 : ?

The alternative hypothesis: H1 : ?

The type of test statistic: (Choose one)

Z

t with degrees of freedom

Chi square

F

The value of the test statistic: ?

(Round to at least three decimal places.)

The two critical values at the0.01 level of significance: ? and ?

(Round to at least three decimal places.)

Can we conclude that the proportion of high school seniors who believe that "getting rich" is an important goal has changed? Yes or No ?

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