The mean time for a group of adults to complete a certain achievement test is 38.8 minutes and the standard deviation is 7 minutes. Assume the variable is normally distributed, find the probability that the mean of 50 randomly selected adults finished the test in less than 35 minutes? 6.19 x 10-5 0.2936 0.7064 0.9999
The mean time for a group of adults to complete a certain achievement test is 38.8 minutes and the standard deviation is 7 minutes. Assume the variable is normally distributed, find the probability that the mean of 50 randomly selected adults finished the test in less than 35 minutes? 6.19 x 10-5 0.2936 0.7064 0.9999
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 2GP
Related questions
Question
The
The mean time for a group of adults to complete a certain achievement test is 38.8 minutes and the standard deviation is 7 minutes. Assume the variable is normally distributed, find the probability that the mean of 50 randomly selected adults finished the test in less than 35 minutes?
6.19 x 10-5
0.2936
0.7064
0.9999
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt