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ID: 3046136 • Letter: I
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i Chrome File Edit View History Bookmarks People Window Help 76% Sun 11:37 AM a E Do Homework . Montana Mal Montana C C BME Se C An Montana × Q Search C Secure l https://www.mathxl.com/Stu x?no O nomework-help/questions-and-answers/bh.. :or Mailbaxes BBA403-A01&A02; Spring 2018 K SOLUTIONS EXPERTQ&A; Inbox -Flagged Homework: Assignment #1 Save Drafts Sent Score: 0.25 of 1 pt 4 of 6 (6 complete) | | Hw Score: 56.25%, 33 has been answered Junk pful answer. Rate this answer 15.3.42 Question Help * All MailIn a large section of a statistics class, the points for the final exam are normally distributed, with a mean of lournal click to enx Homeworkx@ 71 and a standard deviation of 8, Grades are assigned such that the top 10% receive A's, the next 20% received B's, the middle 40% receive C's, the next 20% receive D's, and the bottom 10% receive F's. Find the lowest score on the final exam that would qualify a student for an A, a B, a C, and a D. Smart Mailboxes Google here to view Pa f the Standard Normal Table The lowest score that would qualify a student for an A is 81 (Round up to the nearest integer as needed.) The lowest score that would qualify a student for a B is (Round up to the nearest integer as needed.) Enter your answer in the answer box and then click Check Answer. Clear All Check Answer remainingExplanation / Answer
=71
=8
Lowest score for getting a B means he has to be in top (10+20) =30%
Hence he has to score atleast 100-30 =70%
z score for P=70% =0.7 is 0.5244
Hence x=z* +
=0.5244*8 +71
=75
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