Background of the Case: You are given the dataset representing the monthly salaries from a sample of thirty (30) Data Scientists. You wish to find the actual average salary that a data scientist would earn. However it would be impractical to gather all the data scientist in the world to get their salary information. Hence, you settle with analyzing the sample. The population standard deviation is known to be P 15,000. Find the Confidence Interval with a confidence level of 90%

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