Question: _____13. You perform a hypothesis test about a population mean on the basis of the following information: The sampled population is normally distributed with a

_____13. You perform a hypothesis test about a population mean on the basis of the following information: The sampled population is normally distributed with a variance of 100, n= 25, ????= 225, = 0.05, Ha: > 220. The critical value of the test statistic is ______

a. 2.5 b. 1.645

c. 1.7109 d. 1.96

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