document! L for a population with -80 and = 10 find the z-score for each of the

Question

document! L for a population with -80 and = 10 find the z-score for each of the following values: (NOTE: you should be able to find these values using the definition of a z-score. You should not need to use a formula or do any serious calculations !) a. 75, 95, 100, 50, 60, 85 (3 points each) b. Find the (X value score) that corresponds to each of the following z-scores: 90,75,82,60,95,65 (3 points each) 2. A score that is 6 points below the mean corresponds to a z-score of -1.50, what is the population standard deviation? (12 points) 3" For a population with a standard deviation of: 12, a score of X-44 corresponds to a -0.50, what is the population mean? (12 points 4. For each of the following, identify the exam score that should lead to the better grade. In each case, explain your.answer: 8: OR a score of X a. A score of X-74 on an exam with M 82 and 40 on an exam with 50 and a 20? (20 points b A score ofX-51 on an exam with : 45 and 2; OR a score of X 90 on an exam with 70 . and 202(20 points) Send to Binder Download Print Open . th de Reader Activity Details Task View this bopic at11 30 P Ends Mar 16, 2018 11:30 PM

Explanation / Answer

We use following Excel Commands to solve the question.

To find Z we use NORM.DIST(75,80,10,TRUE) command and To find x we use NORM.INV(0.90,80,10) command.

x Z 75 0.3085 95 0.9332 100 0.9772 50 0.0013 60 0.0228 85 0.6915 Z x 0.9 92.82 0.75 86.74 0.82 89.15 0.6 82.53 0.95 96.45 0.65 83.85

Related Questions

Navigate

• Browse (All)
• Browse D
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.