Suppose we are interested in the average online exposure time of students, a random variable that can be described by a probability distribution. We are interested in deciding whether or not the mean exposure time is now greater than 8 hours per day average pre-COVID. What could be a null hypothesis and alternative hypothesis? A. µ = 8 hours per day B. µ ≠ 8 hours per day C. µ > 8 hours per day D. µ < 8 hours per day 2. For a one-sided test, which combination/s above (problem 1) could be the statements for null hypothesis then alternative hypothesis? A. A, B B. A, C C. A, D D. Both B & C E. All of A, B, C

Suppose we are interested in the average online exposure time of students, a random variable that can be described by a probability distribution. We are interested in deciding whether or not the mean exposure time is now greater than 8 hours per day average pre-COVID. What could be a null hypothesis and alternative hypothesis? A. µ = 8 hours per day B. µ ≠ 8 hours per day C. µ > 8 hours per day D. µ < 8 hours per day 2. For a one-sided test, which combination/s above (problem 1) could be the statements for null hypothesis then alternative hypothesis? A. A, B B. A, C C. A, D D. Both B & C E. All of A, B, C

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter9: Counting And Probability

Section9.4: Expected Value

Problem 1E: If a game gives payoffs of $10 and $100 with probabilities 0.9 and 0.1, respectively, then the...

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