An article reports the following values for soil heat flux of eight plots covered with coal dust. 37.0 32.7 37.0 37.3 35.2 28.5 18.8 24.2 n USE SALT 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 hea flux over that for grass? Test the appropriate hypotheses using a = 0.05. State the appropriate hypotheses. O Ho: H = 29 H:µ< 29 O Hoi H# 29 Hai H = 29 Ο H: μ 29 Hi µ > 29 Ο H μ29 Hg:H # 29 Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to three decimal places.) P-value =
An article reports the following values for soil heat flux of eight plots covered with coal dust. 37.0 32.7 37.0 37.3 35.2 28.5 18.8 24.2 n USE SALT 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 hea flux over that for grass? Test the appropriate hypotheses using a = 0.05. State the appropriate hypotheses. O Ho: H = 29 H:µ< 29 O Hoi H# 29 Hai H = 29 Ο H: μ 29 Hi µ > 29 Ο H μ29 Hg:H # 29 Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to three decimal places.) P-value =
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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