History Bookmarks People Window Help 63 Hrmwk . Areas Under Any· New Tab -) Cl S

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History Bookmarks People Window Help 63 Hrmwk . Areas Under Any· New Tab -) Cl Secure https://www.webassign.net/ ebstudent/Assignment-Responsesis bindet, a (b) the thickness is more than 7.0 mm (c) the thickness is between 3.0 mm and 7.0mm Need Help? 0/1 points 1 Previous Answers BBUnderStat 12 63 008, My Notes Ask Your Teaches O The amount of money spent weekly on cleaning, maintenance, and repairs at period of time to be approximately normally distributed, with mean -S617 and standard devationo-as a large restaurant was observed over a (a) If $646 is budgeted for next week, what is the probability that the actual costs will exceed the budgeted amount? (Round your answer to four decimal places.) 0.2361X (b) How much should be budgeted for weekly repairs, cleaning, and maintenance so that the probability that the budgeted amount will be exceeded in a given week is only 0.06? (Round your answer to the nearest dollar.) Need Help? Resd Subimit Assignment Save Assignment Progress Home My Assignments Excension Reques Systens ins All rights reserved 5

Explanation / Answer

Solution:- Given that mean : 617 , sd = 38

Formula : Z = (X - )/

a)P(X > 646) = P(Z > (646 - 617)/38)
= P(Z > 0.7632)
= 0.2236

b)P(X > x) = 0.06
P(Z > (x - 617)/38) = 0.06
(x - 617)/38 = 1.5548
x = 617 + (38*1.5548)
x = 676.0824
x = 676

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