The Pig 'N' Whistle restaurant in West End is under new management. While under the previous management, 15% of the customers rated their dining experiences as "unsatisfactory". The restaurant's current manager would like to test her belief that this percentage is now lower due to new training procedures. Suppose 75 customers were randomly chosen and asked to rate their dining experiences.

Using a 5% level of significance, calculate the probability of a Type II error occurring if the actual (population) proportion of unsatisfied customers is 6%. Please show all step!!! Thank you