QUESTION 8 Solve the problem below and fill-in the blanks to show your work. Round all z-scores to the nearest hundredth when necessary. Victor Fries watches a morning news show, where he hears that the mean cost of a refrigerator repair is $180. Assuming these costs are normally distributed with a standard deviation of $15.40, what proportion of refrigerator repairs will cost less than $200? Z-Score: Work: Which image below (A, B, C, or D) looks most similar to the curve you drew? B C Area from the Table: Work: Final Answer:

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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QUESTION 8
Solve the problem below and fill-in the blanks to show your work. Round all z-scores to the nearest hundredth when necessary.
Victor Fries watches a morning news show, where he hears that the mean cost of a refrigerator repair is $180. Assuming these
costs are normally distributed with a standard deviation of $15.40, what proportion of refrigerator repairs will cost less than $200?
Z-Score:
Work:
Which image below (A, B, C, or D) looks most similar to the curve you drew?
A
D
Area from the Table:
Work:
Final Answer:
B.
Transcribed Image Text:QUESTION 8 Solve the problem below and fill-in the blanks to show your work. Round all z-scores to the nearest hundredth when necessary. Victor Fries watches a morning news show, where he hears that the mean cost of a refrigerator repair is $180. Assuming these costs are normally distributed with a standard deviation of $15.40, what proportion of refrigerator repairs will cost less than $200? Z-Score: Work: Which image below (A, B, C, or D) looks most similar to the curve you drew? A D Area from the Table: Work: Final Answer: B.
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