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  3. to test h0: mu=60 versus h1: mu<60, a random sa

To test H0: mu=60 versus H1: mu<60, a random sample size n=25 is obtained from a...

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Basic Math

To test H0: mu=60 versus H1: mu<60, a random sample size n=25is obtained from a population that is known to be normallydistributed. Complete parts a through d below. a) if x bar= 57.4and s= 14.1, compute the test statistic. b)If the researcherdecides to test this hypothesis at the confidence variable= .1level of significance, determine the critical value(s). c)draw thet-distribution that depicts the critical region. d)will theresearcher reject the null hypothesis?

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Solution a Given that60574s 141n 25This is the left tailed test The null    See Answer
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