Do not solve the problem just identify the equations you wou

Do not solve the problem, just identify the equations you would use for CI and Hypothesis.

Thank you

Keep on Rolling. The Rolling Stones, a rock group formied in the 1960s, have toured extensively in support of new albums. Pollstar has collected from the Stones\'s North American tours. For 30 randomly selected Rolling Stones concerts, the mean gross earning is $2.27 million. Assuming a population standard devia- tion gross earnings of $0.5 million, obtain a 99% confidence interval for the mean gross earnings of all Rolling Stones concerts. Interpret your answer in words data on the earnings Worker Fatigue. A study by M. Chen et al. titled \"Heat Stress Evaluation and Worker Fatigue in a SteelPlant\" (American Industrial Hygiene Association, Vol. 64, pp. 352- 359) assessed fatigue in steel-plant workers due to heat stress. Among other things, the researchers monitored the heart rates of a random sample of 29 casting workers. Ahy-\\ pothesis test is to be conducted to decide whether the mean post-work heart rate of casting workers éxceeds the normal resting heart rate of 72 beats per minute (bpm).

Solution

H.

Note that              
Margin of Error E = z(alpha/2) * s / sqrt(n)              
Lower Bound = X - z(alpha/2) * s / sqrt(n)              
Upper Bound = X + z(alpha/2) * s / sqrt(n)              
              
where              
alpha/2 = (1 - confidence level)/2 =    0.005          
X = sample mean =    2.27          
z(alpha/2) = critical z for the confidence interval =    2.575829304          
s = sample standard deviation =    0.5          
n = sample size =    30          
              
Thus,              
Margin of Error E =    0.235139969          
Lower bound =    2.034860031          
Upper bound =    2.505139969          
              
Thus, the confidence interval is              
              
(   2.034860031   ,   2.505139969   ) [ANSWER]

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