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The makers of a headache medicine claim the average amount of time it takes for a headache to go away after taking their
Posted: Thu Apr 28, 2022 8:00 am
by answerhappygod
- The Makers Of A Headache Medicine Claim The Average Amount Of Time It Takes For A Headache To Go Away After Taking Their 1 (363.13 KiB) Viewed 25 times
The makers of a headache medicine claim the average amount of time it takes for a headache to go away after taking their pill is less than 20 minutes. You want to see if this is true. You gather a random sample of 12 people and determine their headaches go away after the following number of minutes. You will test this at significance level .05. 16 21 19 22 18 23 24 15 20 18 19 22 Which of the following is true? This is a Z, and the value is Z = -1.2547 O This is a T, and the value is T = - 3129 This is a T, and the value is T = -1.2547 O This is a Z, and the value is Z=-.3129