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a) If sample data are such that the null hypothesis is rejected at the alpha=5% level...

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Basic Math

a) If sample data are such that the null hypothesis is rejectedat the alpha=5% level of significance based upon a 2 tailed test,is H0 also rejected at the alpha=1% level of significance ?Explain. b) If a 2 tailed hypothesis test leads to rejection of thenull hypothesis at a certain level of significance, would thecorresponding 1 tailed test lead to rejection of the nullhypothesis ? Explain.

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a Let the test statistic be Now forthe 2 tailed test the pvalue isSince the null hypothesis is rejected at the alpha5    See Answer
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