In January 2025
Answer to Question #343323 in Statistics and Probability for iya
in a graduate college,the average lenght of registration time during a semester is 120 minutes with a standard deviation of 25 minutes .with the introduction of a new registration procedure,a random sample of 50 students system took an average of 80 minutes sith a standard devation of 12 minutes
What is the alternative hypothesis of the problem?
"H_a:\\mu<120"
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