Question

The results of a certain medical test are normally distributed with a mean of 124 and a standard deviation of 15 . Convert the given results into z-scores, and then use the accompanying table of z-scores and percentiles to find the percentage of people with readings between 145 and 166

Name: the results of a certain medical test are normally distributed with a mean of 124 and a standard deviation of 15 convert the given results into z scores and then use the accompanying table of z scores
Uploaded: 2023-05-07T21:54:44-08:00
Duration: 3 min 51 s
Channel: Chloe Frechette
Description: the results of a certain medical test are normally distributed with a mean of 124 and a standard deviation of 15 convert the given results into z scores and then use the accompanying table of z scores

          The results of a certain medical test are normally distributed with a mean of 124 and a standard deviation of 15 . Convert the given results into z-scores, and then use the accompanying table of z-scores and percentiles to find the percentage of people with readings between 145 and 166

Added by Henry S.

Introductory and Intermediate Algebra for College Students 4th

Robert Blitzer 4th Edition

Instant Answer

Solved by Expert Chloe Frechette

05/07/2023

Step 1

z-score = (X - μ) / σ For X = 145: z1 = (145 - 124) / 15 z1 = 21 / 15 z1 ≈ 1.4 For X = 166: z2 = (166 - 124) / 15 z2 = 42 / 15 z2 ≈ 2.8 Show more…

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The results of a certain medical test are normally distributed with a mean of 124 and a standard deviation of 15 . Convert the given results into z-scores, and then use the accompanying table of z-scores and percentiles to find the percentage of people with readings between 145 and 166