Mathematics > QUESTIONS & ANSWERS > MATH 225N MATH math225n week 8 final (graded A+) (All)

MATH 225N MATH math225n week 8 final (graded A+)

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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 pa... rameter μ. That is correct! H0: μ≠33; Ha: μ=33 H0: μ=33; Ha: μ≠33 H0: μ≥33; Ha: μ<33 H0: μ≤33; Ha: μ>33 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:X<17.1   H0:X=14.4, Ha:X≠14.4   H0:X≤3.8, Ha:X>3.8   H0:X≤7.4, Ha:X>7.4   H0:X=3.3, Ha:X≠3.3  Answer Explanation Correct answer: H0:X≤3.8, Ha:X>3.8 H0:X≤7.4, Ha:X>7.4 Remember the forms of the hypothesis tests.  Right-tailed: H0:X≤X0, Ha:X>X0.  Left-tailed: H0:X≥X0, Ha:X<X0.  Two-tailed: H0:X=X0, Ha:X≠X0. [Show More]

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