Type II error hypothesis question

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SUMMARY

The discussion centers around a Type II error hypothesis question, specifically focusing on the disagreement regarding the calculation of the beta value. The original solution provided by the professor is questioned, as the participant calculated a beta value of 0.4825 using the method taught in class. The participant seeks validation for their approach and invites others to weigh in on the accuracy of both the professor's formula and their own calculation.

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  • Review the concept of Type II errors and their implications in hypothesis testing
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Students studying statistics, educators teaching hypothesis testing, and researchers involved in statistical analysis who need clarity on Type II errors and beta value calculations.

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Homework Statement


Here is the question (I am only confused about part b):
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Here is the solution given by my professor:
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The Attempt at a Solution


However, I do not agree with part b and honestly have no clue where they got that formula from. I used the method taught in my class along with a bit of intuition and came up with a beta value of 0.4825. Does anyone agree with me work or is the solution from the professor actually correct?
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Anyone got an idea? :O
 

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