In 1992, the Journal of Epidemiology and Community Health published an article that claimed that the...

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In 1992, the Journal of Epidemiology and Community Health published an article that claimed that the average incubation period from infection with HIV to the development of AIDS was 6.5 years with a standard deviation of 4.2 years. Complete the following steps to determine the probability that in a sample of 350 infected individuals, the sample mean is between 6.3 and 6.6 years. (NOTE: Remember that z-scores have two decimal places and areas/probabilities have four) Insert the following values from the question: = 6.5 years = 4.2 years n=350 What is the first z-score? individuals What is the second z-score? What are the areas? What is the probability that the sample mean is between 6.3 and 6.6 years? In 1992, the Journal of Epidemiology and Community Health published an article that claimed that the average incubation period from infection with HIV to the development of AIDS was 6.5 years with a standard deviation of 4.2 years. Complete the following steps to determine the probability that in a sample of 350 infected individuals, the sample mean is between 6.3 and 6.6 years. (NOTE: Remember that z-scores have two decimal places and areas/probabilities have four) Insert the following values from the question: = 6.5 years = 4.2 years n=350 What is the first z-score? individuals What is the second z-score? What are the areas? What is the probability that the sample mean is between 6.3 and 6.6 years?

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To solve this problem we can use the Central Limit Theorem along with the properties of the normal d... View the full answer