b course hero log in - Search * | eCampus: Official Correspondent X Gradebook X zy Section 6.2 - QNT/275T: Statistic: X + X https://learn.zybooks.com/zybook/QNT_275T_55318202/chapter/6/section/2?content_resource_id=42551286 G S Bookmarks b Suggested Sites Imported From IE eCampus: Login N Netflix 18"(3 ) Imported From IE (2) New Tab G Google R* Get.smarter.com -... [ Imported From IE (3) Raymour and Flani.. > | Other favorites =zyBooks My library > QNT/275T: Statistics for Decision Making home > 6.2: Hypothesis test for a population mean zyBooks catalog ? Help/FAQ @ Bill Mccarthy CHALLENGE ACTIVITY 6.2.1: Hypothesis test for a population mean. 380506.1429276.qx3zqy7 Jump to level 1 A factory that manufactures screws is performing a quality control experiment. Each object should have a length of no more than 18 centimeters. The factory believes that the length of the screws is less than this value and measures the length of 100 screws. The sample mean screw length was 18.02 centimeters. The population standard deviation is known to be o = 0.13 centimeters. What is the null hypothesis? |Select v What is the alternative hypothesis? Select v 1 2 3 4 Check Next Feedback? Instructor note: 4:03 PM 2/13/2022