70% STA 2023 Elementary Statistics Class Number: 06475 lorenzo torres 12/7/17 8:

Question

70% STA 2023 Elementary Statistics Class Number: 06475 lorenzo torres 12/7/17 8:11 PM eview Test: Review Final Exam Score: 0 of 1 pt 40f 18 Test Score: 60.23%, 10.84 of 18 pts 6.3.9 Question Help * Find the indicated 1Q score. The graph to the right depicts 1Q scores of aduits, and those scones are normally distmbuled with a mean of 100 and a standard deviation of 15. The indicated 10 soore, is 110.i. (Round to one decimal place as needed ) You answered 111.2 Correct answer 110.1±01 Question is complete. Tap on the red indicators to see incorrect answers. Solving question number q24477968 from chegg.com 2 3 5 6 8

Explanation / Answer

solution=

First find the z score that corresponds to an area of 0.75.

The z score that corresponds to an area of 0.75 is 0.67

Convert a standard normal random variable z to a normal random variable x by using the formula below, where is the mean and is the standard deviation.

x = + (z * )

= 100

= 15

x = 100 + (0.67 * 15) = 110.05

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