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Author Question: A hypothesis test is conducted to determine if a refrigeration unit is cooling at 36o. A sample of ... (Read 60 times)

segrsyd

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A hypothesis test is conducted to determine if a refrigeration unit is cooling at 36o. A sample of size 16 resulted in the following statistical output:
  One-Sample T: Cooling
  Test of mu = 36 vs not = 36
  Variable N Mean StDev SE Mean 95 CI T P
  Cooling 16 34.0000 2.0656 0.5164 (32.8993, 35.1007) -3.87 0.002
  1.Reject the null, the refrigerator is not cooling statistically different than 36.
  2.Reject the null, the refrigerator is cooling statistically different than 36.
  3.Fail to reject the null, the refrigerator is not cooling statistically different than 36.
  4.Fail to reject the null, the refrigerator is cooling statistically different than 36.

Question 2

The notation, t(20,0.025), for the confidence coefficient is interpreted as
  1.the critical value of the t-distribution with  = 20 and  = 0.025.
  2.the critical value of the t-distribution with n = 20 and  = 0.025.
  3.the critical value of the t-distribution with df = 20 and left tail area of 0.025.
  4.the critical value of the t-distribution with df = 20 and right tail area of 0.025.



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brittanywood

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Answer to Question 1

2

Answer to Question 2

4




segrsyd

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Reply 2 on: Jul 24, 2018
Wow, this really help


cici

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Reply 3 on: Yesterday
Gracias!

 

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