Question: please answer this question and show all steps 8.30 The mean score for freshmen on an aptitude test at a certain college is 540, with

please answer this question and show all steps

8.30 The mean score for freshmen on an aptitude test at a certain college is 540, with a standard deviation of 50. Assume the means to be measured to any degree of accuracy. What is the probability that two groups selected at random, consisting of 32 and 50 students, respectively, will differ in their mean scores by (a) more than 20 points? (b) an amount between 5 and 10 points? Given: Mu = 540

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

Class Question Describing data 1. StatsCom is studying the number of minutes used monthly by clients in a particular cellphone rate plan, A random sample of 12 clients showed the following number of...

Anais is organizing her rock collection and places each rock in one of three categories: small, medium, or large. This illustrates what level of measurement? Select one: a. nominal b. ordinal Correct...

Possible Multiple Choice Questions for the Exam. Focus on the topics discussed in class. Chapter 1 Multiple Choice Identify the choice that best completes the statement or answers the question. ____...

PAT (Pre-Admission) SCORES FOR 6 COLLEGES COLLEGE 1 Gender Verbal Math F F M M M M F M F F M F F M M M F M F M M M F F F M M F F M F F M F M F F F M M M M M M M F F F F F 450 640 590 400 600 610 630...

Set Week 3: Chapters 3 & 4 Chapter 3: Complete the EVEN numbers problems listed below; the problem set begins on page 100 in Gravetter and Wallnau (2013). The answers to the odd numbered problems are...

PSYC 354 HOMEWORK 3 Central Tendency and Variability When submitting this file, be sure the filename includes your full name, course and section. Example: HW3_JohnDoe_354B01 Be sure you have reviewed...

0 Question 23 B 0/1 pt '0 3 8 99 (9 Details 14% of all college students volunteer their time. Is the percentage of college students who are volunteers larger for students receiving financial aid? Of...

MONTGOMERY COLLEGE - TAKOMA PARK CAMPUS MATH 117 - ELEMENTS OF STATISTICS FINAL EXAMINATION Given Date: 08/08/2016 at 6PM EST Prof: Dr. J. Wulu Due Date: 8/10/2016 at 11:59PM EST Max Point: 500...

A new sports car model has defective brakes 15% of the time and a defective steering mechanism 5% of the time. Lets assume (and hope) that these problems occur independently. If one or the other of...

Sulfur dioxide is released in the combustion of coal. Scrubbers use aqueous slurries of calcium hydroxide to remove the SO2 from flue gases. Write a balanced equation for this reaction. (Use the...

For the function f ( x ) , find the value of a for which f ( a ) = 3 . f ( x ) = ( 7 ) / ( x ) - ( 8 ) / ( 2 x )

A LOOK AT THE FUTURE (FOR THE COFFEE BUSINESS) a. Plans b. Short term and long-term strategies

Set up a debate between yourself and three other colleagues with two of you arguing in favour of your pay being affected by the performance management scheme and the other two arguing that it should...

Imagine you are a manager at Sainsburys (case study 5.1) at the meeting where the scheme is being explained. Make a list of questions that you would want to ask to satisfy yourself that the scheme is...

Discuss with two of your colleagues which benefi ts are the most important ones to offer, putting them in a league table of importance. Justify your decisions.