The average total time spend by patients with minor conditions who come to the Emergency Room (ER) at a local hospital i

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answerhappygod
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The average total time spend by patients with minor conditions who come to the Emergency Room (ER) at a local hospital i

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The average total time spend by patients with minor conditionswho come to the Emergency Room (ER) at a local hospital is normallydistributed with a mean of 4.3 hours and a standard deviation of0.9 hours.
a. What is the probability that a randomly selected patient inthe ER with a minor condition will spend more than 5 hours in thehospital?
b. What is the probability that a random sample of 25 patientswill spend an average total time of less than 4 hours in the E.R.,which is the provincial standard?
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