Question

A population of values has a normal distribution with ?=147.3 and ?=75.7. You intend to draw a random sample of size n= 222. Find P38, which is the score separating the bottom 38% scores from the top 62% scores. P38 (for single values) = For the sample of 222, find P38, which is the mean separating the bottom 38% means from the top 62% means. P38 (for sample means) = Enter your answers as numbers to 1 decimal place.

Name: a population of values has a normal distribution with 1473 and 757 you intend to draw a random sample of size n 222 find p38 which is the score separating the bottom 38 scores from the top 6 35542
Uploaded: 2023-10-08T20:03:50-08:00
Duration: 1 min 57 s
Channel: Ana Carolina Da Cruz
Description: a population of values has a normal distribution with 1473 and 757 you intend to draw a random sample of size n 222 find p38 which is the score separating the bottom 38 scores from the top 6 35542

          A population of values has a normal distribution
with ?=147.3 and ?=75.7. You intend to draw a random
sample of size n= 222.
Find P38, which is the score separating
the bottom 38% scores from the top 62% scores. 
P38 (for single values) =
For the sample of 222, find P38, which
is the mean separating the bottom 38% means from the top 62%
means. 
P38 (for sample means) = 
Enter your answers as numbers to 1 decimal place.

Added by Jesse C.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Ana Carolina Da Cruz

10/08/2023

Step 1

We can use the z-table or a calculator to find this value. The z-score for the 38th percentile is approximately -0.31. Now, we can find P38 for single values using the formula: P38 = μ + (z * σ) where μ is the mean, z is the z-score, and σ is the standard Show more…

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A population of values has a normal distribution with ?=147.3 and ?=75.7. You intend to draw a random sample of size n= 222. Find P38, which is the score separating the bottom 38% scores from the top 62% scores. P38 (for single values) = For the sample of 222, find P38, which is the mean separating the bottom 38% means from the top 62% means. P38 (for sample means) = Enter your answers as numbers to 1 decimal place.