Isоlаtiоn is pаrticulаrly useful methоd of industrial hygiene control for jobs that involve relatively few workers.
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Pleаse nоte thаt this questiоn cоnsists of five pаrts. You may use MINITAB to find a final answer. However you MUST show all the mathematical work to get to the final answer. Just giving the answer without adequate work/explanation may result in zero for the question. Pottuvil is a popular beach town in tropical Sri Lanka. Suppose the hotel cost per night in Pottuvil follows a normal distribution with mean $100 and a standard deviation $30. What proportion of hotels are cheaper than $75 per night? Assuming luxury hotels are expensive, what is the least price one will have to pay if they plan on staying in top 10% of the most luxurious hotels. Suppose you take a random sample of 25 hotels in the area and calculate the mean nightly rate. What is the distribution, mean and the standard deviation of the sampling distribution of the sample mean? What is the name of the theorem that tells you the sampling distribution of sample mean? What is the probability that the sample mean rate would be more than $120.