to test the null hypothesis that the population mean of a normal distribution is zero against the alternative hypothesis that the population mean is negative. She performs a statistical analysis and observes a test statistic of Z= -1.4059306. Proposition One: the appropriate decision is to reject the null hypothesis at the 5% significance level. Proposition Two: The appropriate decision is to reject the null hypothesis at the 1% significance level. Proposition One is true and Proposition Two is true. Proposition One is true and Proposition Two is false. Proposition One is false and Proposition Two is true. Proposition One is false and Proposition Two is false. None of the above

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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to test the null hypothesis that the population mean of a normal distribution is zero
against the alternative hypothesis that the population mean is negative. She
performs a statistical analysis and observes a test statistic of Z = -1.4059306.
Proposition One: the appropriate decision is to reject the null hypothesis at the 5%
significance level. Proposition Two: The appropriate decision is to reject the null
hypothesis at the 1% significance level.
Proposition One is true and Proposition Two is true.
Proposition One is true and Proposition Two is false.
Proposition One is false and Proposition Two is true.
Proposition One is false and Proposition Two is false.
None of the above
Transcribed Image Text:to test the null hypothesis that the population mean of a normal distribution is zero against the alternative hypothesis that the population mean is negative. She performs a statistical analysis and observes a test statistic of Z = -1.4059306. Proposition One: the appropriate decision is to reject the null hypothesis at the 5% significance level. Proposition Two: The appropriate decision is to reject the null hypothesis at the 1% significance level. Proposition One is true and Proposition Two is true. Proposition One is true and Proposition Two is false. Proposition One is false and Proposition Two is true. Proposition One is false and Proposition Two is false. None of the above
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