A certain academic program claims that their students graduate in less than 4 years on average....

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A certain academic program claims that their students graduatein less than 4 years on average. A random sample of 50 students istaken and the mean and standard deviation are found. The teststatistic is calculated to be -1.69. Using a 5% significance level,the conclusion would be: a) there is sufficient sample evidence forthe program’s claim to be considered correct. b) there isinsufficient sample evidence for the program’s claim to beconsidered correct. c) there is insufficient sample evidence forthe program’s claim to be considered incorrect. d) there issufficient sample evidence for the program’s claim to be consideredincorrect.

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EXPLANATIONThe actual decision is based on the value of a suitablefunction of the data the test statisticThe set of possible values of the test statistic itself dividesinto two subsets a region in which the value of the test See Answer

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