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Author Question: Various temperature measurements are recorded at different times for a particular city. The mean of ... (Read 70 times)

anjilletteb

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on: Aug 1, 2018
Various temperature measurements are recorded at different times for a particular city. The mean of 20C is obtained for 60 temperatures on 60 different days.
 
  Assuming that  = 1.5C, test the claim that the population mean is . Use a 0.05 significance level.

Question 2

Rich Borne is currently taking Chemistry 101. On the five laboratory assignments for the quarter, he got the following scores:
 
  30 38 13 48 53
  Compute the range.
  A) 53 B) 13 C) 40 D) 8


vish98

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Reply #1 on: Aug 1, 2018
Answer to Question 1

:  = 23; :  > 23. Test statistic: z = -15.49;.
P-value: 0.0002. Because the P-value of 0.0002 is less than the significance level of we reject the null hypothesis.

Answer to Question 2

C


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anjilletteb

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Reply #2 on: Aug 1, 2018
Thank you!


vish98

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Reply #3 on: Aug 1, 2018
Always glad to help...


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