Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean μ=287 days and standard deviation σ=16 days. Complete parts​ (a) through​ (f) below. ​(a) What is the probability that a randomly selected pregnancy lasts less than 281 ​days

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
icon
Related questions
Question
Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean
μ=287 days
and standard deviation
σ=16 days.
Complete parts​ (a) through​ (f) below.
​(a) What is the probability that a randomly selected pregnancy lasts less than
281
​days?
 
 
 
​(c) What is the probability that a random sample of
20
pregnancies has a mean gestation period of
281
days or​ less?
 
The probability that the mean of a random sample of
20 pregnancies is less than 281 days is approximately ________.
​(Round to four decimal places as​ needed.)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 6 images

Blurred answer
Knowledge Booster
Point Estimation, Limit Theorems, Approximations, and Bounds
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill