Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

The composite scores of individual students on the ACT college entrance examination in 2019 followed a Normal distribution with mean 20.8 and standard deviation 5.8.

  1. The composite scores of individual students on the ACT college entrance examination in 2019 followed a Normal distribution with mean 20.8 and standard deviation 5.8.

A. What is the probability that a single student randomly chosen from all those taking the test scores 22 or higher?

B. Now take an SRS of 50 students who took the test. What is the probability that the mean score of these students is 22 or higher?

C.What is the probability that the mean score of an SRS of 100 students is 22 or higher?

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

College Algebra

Authors: Cynthia Y Young

4th Edition

1119320682, 9781119320685

More Books

Students also viewed these Mathematics questions

Question

Wear as little as possible

Answered: 1 week ago

Question

Be relaxed at the hips

Answered: 1 week ago