Determine the critical value(s) for a right-tailed hypothesis test for a mean with the given characteristics. Round any z-value solution to two decimal places. Round any t-value solution to four decimal places.

• =0.1
• The sample size is 30
• The population standard deviation () is not known

Should the t or z distribution be used for the above scenario?

• The Student's t distribution should be used
• The standard normal (z) distribution should be used

The critical value(s) for the test are given by