A normal population has a mean μ = 30 and a standard deviation σ = 6. The proportion of the population between 16 and 26 is ________.
Added by Eduardo N.
Step 1
To find the z-score for 16, we use the formula: z = (x - μ) / σ where x is the value we want to find the z-score for, μ is the population mean, and σ is the population standard deviation. So, for x = 16: z = (16 - 30) / 6 = -2.33 Similarly, for x = 26: z = Show more…
Show all steps
Close
Your feedback will help us improve your experience
Luke Humphrey and 52 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
"A normal population has mu equals and sigma equals 24. A random sample of n equals 36 scores from this population has mean of 12. What's the z-score for this sample mean? 1.5 1.5"
Pritesh R.
a normal population has a mean u=30 and standard deviation o=10 what proporation of the population is between 18 and 27?
Marc L.
A sample of $n=36$ scores is selected from a normal distribution with a mean of $\mu=65 .$ If the sample mean is $M=59$, then compute the $z$ -score for the sample mean and determine whether the sample mean is a typical, representative value or an extreme value for each of the following: a. A population standard deviation of $\sigma=12$ b. A population standard deviation of $\sigma=30$
Kari H.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD