An article reports the following values for the soil heat flux of eight plots covered with coal dust: 34.7 35.4 34.7 37.

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An article reports the following values for the soil heat fluxof 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 isknown to be 29.0. Assuming that heat flux distribution isapproximately normal, does the data suggest that the coal dust iseffective in increasing the mean heat flux over that for grass?
a) Write down the null and alternative hypotheses
b) Write down the value of the test statistic
c) What is the p-value of the test
d) What is your conclusion using