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Question regarding the knowledge of astronomy

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Reference no: EM131083840

A group of professors investigated first-year college students' knowledge of astronomy.  One concept of interest was the Big Bang theory of the creation of the universe. In a sample of 144 freshmen students, 31 believed that the Big Bang theory accurately described the creation of planetary systems. Based on this information, is it correct at the a = 0.10 level of significance to state that more than 20% of all freshmen college students believe the Big Bang theory describes the creation of planetary systems?

Find the test statistic

Z=

Determine the rejection region

Z<-1.645

Z>1.28

Z>1.28 or Z<-1.28

Z<-1.645

Z>1.645 or Z<-1.645

Z>1.645

Reference no: EM131083840

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