Question
Asked Jan 27, 2020
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In Exercises, use Table VIII and, if necessary, the reciprocal property of F-curves to find the required F-values. Illustrate your work graphically.

Determine the two F-values that divide the area under the curve into a middle 0.95 area and two outside 0.025 areas for an F-curve with

a. df = (7, 4).
b. df = (12, 20).

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Expert Answer

Step 1

a).

Software procedure:

Step by step procedure to obtain F-value using Minitab software is given below:

  • Choose Graph > Probability distribution plot.
  • Click on view probability. Click OK.
  • Under distribution, select F-Distribution.
  • Enter the value 7 in numerator degrees of freedom.
  • Enter the value 4 in denominator degrees of freedom.
  • Under shaded area, click on probability.
  • In Both-tails probability,...
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