Students | HVCC X Bb Tests - Fall 2022 Statistics (1 X Bb Review Test Submission: Tes X Bb Take Test: Homework - Cha X K Bb Take Test: Homework - Cha x GThe weight of trucks travel x C bbprod.hvcc.edu/webapps/assessment/take/take.jsp?course_assessment_id=_96691_1&course_id=_30920_1&content_id=_2130341_1&question_num_3.x=081... & C ABP Bookmarks g - Google Search New Tab Google a Amazon.com: Prim... HDMoviesBD.Com |. S SolarMovie - Watch... Free Plagiarism Che.. Movieruiz | Watch B... M Gmail YouTube Other boo Question Completion Status: The liquid chlorine added to swimming pools to combat algae has a relatively short shelf life before it loses effectiveness. Records indicate that the mean shelf life of a 5-gallon jug of chlorine is 2, 160 hours (90 days). A new chemical was added to the chlorine to determine if it would increase the shelf life. A sample of 9 jugs revealed a mean shelf life of 2, 172 hours with a standard deviation of 9.4 hours. At the .01 level of significance, has the chemical additive increased the mean life of the chlorine? a. Enter the letter corresponding to the correct null and alternate hypotheses. A. Ho: H 2 2, 160 hours H1: u 2,160 hours C. Ho: H = 2,160 hours H1: H # 2, 160 hours b. What is the level of significance? 2.054 . Which test statistic will be used, z or t? 2.24 d. Enter the letter corresponding to the correct decision rule? 0.02 A. Reject Ho if z > 2.33 B. Reject Ho if z 2.896 e. Calculate the value of the test statistic. Round your answer to three decimal places. .02 f. Enter the letter corresponding to the correct decision regarding the null hypothesis. A Reject Ho B. Do not reject Ho g. Enter the letter corresponding to the correct answer to the question asked in the problem. A. Yes, the mean life of the chlorine has increased. 11:21 PM 9 11/12/2022 47'F search Mostly cloudy HD - 1080