A share holders group claimed that the mean tenure for a chief executive office(

Question

A share holders group claimed that the mean tenure for a chief executive office(CEO) at least 9 years. A survey of companies based on a random sample of 85 companies reported in the Wall Street showed a sample mean tenure of 7.27 years with a sample standard deviation of 6.38 years. Is there at the 5% leve3lk of significance any evidence that the mean tenure for a chief executive office(CEO) is less than 9 years? Calculate a 95% confidence interval of the population mean tenure for a CEO. Also provide an explicit interpretation in words of the confidence interval.

Explanation / Answer

This is due to the thermodynamic equilibrium, of course I will assume we talk about P = 1 atm

so..

ice melt spontanous at 10°C, since the entropy of the system is much higher than that of the surroundings, the overall chang ein entorpy is forwarding toward melting ( i.e. dS universe is positive)

For water... freezing at -10°C is favoured since there is plenty of entropy in the surroundings, it must then be lowered in the system so dS universe favour solid water

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