{"id":1615,"date":"2023-03-25T15:51:13","date_gmt":"2023-03-25T15:51:13","guid":{"rendered":"https:\/\/www.skilledtutorials.com\/?post_type=download&p=1615"},"modified":"2023-03-25T15:51:13","modified_gmt":"2023-03-25T15:51:13","slug":"solved-math225-week-8-final-exam","status":"publish","type":"download","link":"https:\/\/skilledtutorials.com\/papers2\/downloads\/solved-math225-week-8-final-exam\/","title":{"rendered":"(Solved) MATH225 Week 8 Final Exam"},"content":{"rendered":"

QUESTION 1<\/strong>
\nA 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 \u03bc.
\n________________________________________
\nSelect the correct answer below:
\n________________________________________<\/p>\n

H0: \u03bc\u226033; Ha: \u03bc=33<\/p>\n

H0: \u03bc=33; Ha: \u03bc\u226033<\/strong><\/em><\/p>\n

H0: \u03bc\u226533; Ha: \u03bc<33<\/p>\n

H0: \u03bc\u226433; Ha: \u03bc>33<\/p>\n

QUESTION 2<\/strong><\/p>\n

The answer choices below represent different hypothesis tests. Which of the choices are right-tailed tests? Select all correct answers.<\/p>\n

________________________________________<\/p>\n

Select all that apply:<\/p>\n

________________________________________<\/p>\n

H0:X\u226517.1, Ha:X<17.1<\/p>\n

H0:X=14.4, Ha:X\u226014.4<\/p>\n

H0:X\u22643.8, Ha:X>3.8 <\/strong><\/em><\/p>\n

H0:X\u22647.4, Ha:X>7.4<\/strong><\/em><\/p>\n

H0:X=3.3, Ha:X\u22603.3<\/p>\n

QUESTION 3<\/strong><\/p>\n

Find the Type II error given that the null hypothesis, H0, is: a building inspector claims that no more than 15% of structures in the county were built without permits.<\/p>\n

________________________________________<\/p>\n

Select the correct answer below:<\/p>\n

________________________________________<\/p>\n

 <\/p>\n

The building inspector thinks that no more than 15% of the structures in the county were built without permits when, in fact, no more than 15% of the structures really were built without permits.<\/p>\n

The building inspector thinks that more than 15% of the structures in the county were built without permits when, in fact, more than 15% of the structures really were built without permits.<\/p>\n

The building inspector thinks that more than 15% of the structures in the county were built without permits when, in fact, at most 15% of the structures were built without permits.<\/strong><\/em><\/p>\n

The building inspector thinks that no more than 15% of the structures in the county were built without permits when, in fact, more than 15% of the structures were built without permits.<\/p>\n

QUESTION 4<\/strong><\/p>\n

Suppose a chef claims that her meatball weight is less than\u00a04\u00a0ounces, on average. Several of her customers do not believe her, so the chef decides to do a hypothesis test, at a\u00a010%\u00a0significance level, to persuade them. She cooks\u00a014\u00a0meatballs. The mean weight of the sample meatballs is\u00a03.7\u00a0ounces. The chef knows from experience that the standard deviation for her meatball weight is\u00a00.5\u00a0ounces.<\/p>\n