Determine the critical value(s) for a right-tailed hypothesis test for a mean with the following characteristics • The significance level of the test is 10% • The sample size is 45 • The population standard deviation (o) is known to be 8.6 Should the t or z distribution be used for the above scenario? O The standard normal (z) distribution should be used O The Student's t distribution should be used The critical value(s) for the test are given by ? v t Question Help: Video 1 Video 2

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