A decade-old study found that the proportion, p, of high school seniors who believed that "getting rich" was an important personal goal was 75%. A researcher decides to test whether or not that percentage still stands. He finds that, among the 215 high school seniors in his random sample, 153 believe that "getting rich" is an important goal. Can he conclude, at the 0.1 level of significance, that the proportion 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. (If necessary, consult a list of formulas.)

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A decade-old study found that the proportion, p, of high school seniors
who believed that "getting rich" was an important personal goal was 75%.
A researcher decides to test whether or not that percentage still stands.
He finds that, among the 215s high school seniors in his random sample,
153 believe that "getting rich" is an important goal. Can he conclude, at
the 0.1 level of significance, that the proportion has indeed changed?
00
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. (If necessary, consult
a list of formulas.)
Transcribed Image Text:A decade-old study found that the proportion, p, of high school seniors who believed that "getting rich" was an important personal goal was 75%. A researcher decides to test whether or not that percentage still stands. He finds that, among the 215s high school seniors in his random sample, 153 believe that "getting rich" is an important goal. Can he conclude, at the 0.1 level of significance, that the proportion has indeed changed? 00 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. (If necessary, consult a list of formulas.)
The null hypothesis:
H, :0
H :0
The alternative hypothesis:
00
O=0
OSO
The type of test statistic:
(Choose one)
O<O
The value of the test statistic:
(Round to at least three
decimal places.)
?
The p-value:
(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?
O Yes
O No
国 回
Dlo
Transcribed Image Text:The null hypothesis: H, :0 H :0 The alternative hypothesis: 00 O=0 OSO The type of test statistic: (Choose one) O<O The value of the test statistic: (Round to at least three decimal places.) ? The p-value: (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? O Yes O No 国 回 Dlo
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