paytonrules1697 paytonrules1697

02-01-2023
Mathematics

Answered

The average yield of grain on 9 randomly picked experimental plots of farm was found to be 150 bushels. if the yield in bushels per plot in previous studies was found to be approximately normally distributed with a variance of 400 bushels 2, a 98% confidence interval for the mean yield: _____________

a. (136.9, 163.1)
b. (144.8, 155.2)
c. (132.8, 167.2)
d. (130.7, 169.3)
e. (145.7, 154.4)

Answer :

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