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Author Question: The temperature readings for 20 fall days (degrees Fahrenheit) in Wheeling, West Virginia, are ... (Read 39 times)

bobbysung

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on: Jun 24, 2018
The temperature readings for 20 fall days (degrees Fahrenheit) in Wheeling, West Virginia, are normally distributed with a mean of 5.5 degrees and a standard deviation of 1.5 degrees. Determine the 90 confidence interval estimate for the fall mean temperature.

Question 2

Consider the following statistics of a multiple regression model: Total variation in y = 1000 . SSE = 300, n = 50, and k = 4.
 a. Determine the standard error of estimate.
  b. Determine the coefficient of determination.
  c. Determine the F-statistic.


ambernicolefink

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Reply #1 on: Jun 24, 2018
Answer to Question 1

LCL = 4.9 degrees and UCL = 6.05 degrees.

Answer to Question 2

a. s = 2.582
b. R2 = 70
c. F = MSR/MSE = 26.25


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