Direction: Solve for the given problem using the appropriate steps in Hypothesis Testing. Show complete solution and state your decision and conclusion. 1. In a recent survey of nurses in Region X, it was found out that the average monthly net income of nurses is P 8,048.25. Suppose a researcher wants to test this figure by a random sample of 158 nurses in Region X to determine whether the monthly net income has changed. Suppose further the average net monthly income of the 158 nurses is P 9,568.40 and the population standard deviation was found to be P 1,563.42.

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