MATH 225N Week 8 Final Exam Questions And Answers 2022

Question 1 1/1 points A fitness center claims that the mean amount of time that a person spends at the gym per visit is 33 minutes. Identify the null hypothesis, H0, and the alternative hypothesis, Ha, in terms of the parameter μ. That is correct! H0: μ≠33; Ha: μ=33 H0: μ=33; Ha: μ≠33 H0: μ≥33; Ha: μ33 H0: μ≤33; Ha: μ33 Answer Explanation Correct answer: H0: μ=33; Ha: μ≠33 Let the parameter μ be used to represent the mean. The null hypothesis is always stated with some form of equality: equal (=), greater than or equal to (≥), or less than or equal to (≤). Therefore, in this case, the null hypothesis H0 is μ=33. The alternative hypothesis is contradictory to the null hypothesis, so Ha is μ≠33. Question 2 1/1 points The answer choices below represent different hypothesis tests. Which of the choices are righttailed tests? Select all correct answers. That is correct! .  H0:X≥17.1, Ha:X17.1   H0:X=14.4, Ha:X≠14.4   H0:X≤3.8, Ha:X3.8   H0:X≤7.4, Ha:X7.4   H0:X=3.3, Ha:X≠3.3  Answer Explanation Correct answer