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Only answer the questions typed: A. indicate whether it's one or two sided B. Indicate whether it's a test of means or proportions C. Write out the expression for determining the P-value

Only answer the questions typed: A. indicate whether it's one or two sided B. Indicate whether it's a test of means or proportions C. Write out the expression for determining the P-value

Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.3: Least Squares Approximation
Problem 31EQ
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Only answer the questions typed:

A. indicate whether it's one or two sided
B. Indicate whether it's a test of means or proportions
C. Write out the expression for determining the P-value 

62. The article "Orchard Floor Management Utilizing Soil-Applied Coal Dust for Frost Protection" (Agri. and Forest Meteorology, 1988: 71-82) reports the fol- lowing values for soil heat flux of eight plots covered with coal dust. 34.7 35.4 34.7 37.7 32.5 28.0 18.4 24.9 The mean soil heat flux for plots covered only with grass is 29.0. Assuming that the heat-flux distribution is approximately normal, does the data suggest that the coal dust is effective in increasing the mean heat flux over that for grass? Test the appropriate hypotheses using a = .05.
Transcribed Image Text:62. The article "Orchard Floor Management Utilizing Soil-Applied Coal Dust for Frost Protection" (Agri. and Forest Meteorology, 1988: 71-82) reports the fol- lowing values for soil heat flux of eight plots covered with coal dust. 34.7 35.4 34.7 37.7 32.5 28.0 18.4 24.9 The mean soil heat flux for plots covered only with grass is 29.0. Assuming that the heat-flux distribution is approximately normal, does the data suggest that the coal dust is effective in increasing the mean heat flux over that for grass? Test the appropriate hypotheses using a = .05.
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