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Test the researcher claim at the level of significance

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1.) A researcher claims that 90% of people trust DNA testing. In a survey of 100 people, 91 of them said that they trusted DNA testing. Is the actual proportion of people who trust DNA testing larger than 90%? Test the researcher's claim at the 1% level of significance.

2.) It is fourth down and a yard to go for a first down in an important football game. The football coach must decide whether to go for the first down or punt the ball away. The null hypothesis is that the team will not get the first down if they go for it. The coach will make a Type I error by doing what?

3.) A significance test was performed to test H0: u=2 versus Ha: u (does not equal) 2. The test statistic is z=1.40. What is the p-value for this test?

Reference no: EM131726001

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