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The UTRGV announced that in 2019, UTRGV students graduated with an average GPA of 3.2. However, some UTRGV CJ professors do not believe this value
The UTRGV announced that in 2019, UTRGV students graduated with an average GPA of 3.2. However, some UTRGV CJ professors do not believe this value and claimed the actual GAP should be lower than 3.2. Therefore, they sampled 625 graduates from different departments and found that the mean of the sample GPA was 3.1 with a stand division (sd) 0.5. Based on the sample statistics, can we reject the UTRGV claim about the GPA with an =.05? (5 points) Please calculate both the two-tailed test and one-tailed test
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