Question: A college aptitude test was given to 100 randomly selected high-school seniors. After a period of intensive training, a similar test was given to the

A college aptitude test was given to 100 randomly selected high-school seniors. After a period of intensive training, a similar test was given to the same students: 59 students received higher grades, 36 received lower grades, and 5 received the same grades. At the 0.05 level of significance, test the claim that the training is effective.

Step by Step Solution

★★★★★

3.43 Rating (156 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Let the posttraining scores be group 1 ie let those ... View full answer

Question Has Been Solved by an Expert!

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

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

789-M-S-S-I (5680).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

According to a Pew poll in 2012, 58% of high school seniors admit to texting while driving. Assume that we randomly sample two seniors of driving age. a. If a senior has texted while driving, record...

The article Truth and DARE: Tracking Drug Education to Graduation (Social Problems [1994]: 448 456) compared the drug use of 288 randomly selected high school seniors exposed to a drug education...

The SAT scores of 12 randomly selected high school seniors Use the data set to (a) Find the sample mean, (b) Find the sample standard deviation, (c) Construct a 99% confidence interval for the...

In Chapter 10 of the text the author refers to the ways in which the prominence of high-profile institutions exacerbates and highlights problems with student debt, athletic and admissions,...

Hours on-line (x) 0 7 5 2 3 5 1 3 5 10 7 6 Test scores (y) 96 75 84 82 74 76 85 95 68 50 65 58 (a) Is there a positive, negative or no relationship between the number of hours spent online and the...

1 (1 point) You own a small storefront retail business and are interested in determining the average amount of money a typical customer spends per visit to your store. You take a random sample over...

2 Step-by-Step please This is a past assignment and I will have a 2016 Assignment following soon. Need within 15 days. 1) According to the record of the registrar's office at a state university, 35%...

Midterm Examination Questions - Spring 2016 1. The final examination grades of random samples of students from three different classes are shown below. Class A Class B Class C 92 91 85 85 85 93 96 90...

I have attached 2 business research. Write a 700- to 1,050-word paper in which you practice identifying the critical first stage of developing any research study: State the purpose of the business...

COMM 215: BUSINESS STATISTICS REVIEW PROBLEMS 1 Descriptive Statistics 1. The listing below gives the service window of A&W: 4.91 0.85 0.52 2.51 1.92 2.66 1.94 5.19 2.33 3.51 2.95 2.62 service times...

FIFO method, spoilage. Refer to the information in Exercise 18-24. If you want to use Excel to solve this exercise, go to the Excel Lab at www.prenhall.com/horngren/cos113e and download the template...

What is routinization of charisma, and how is it accomplished?

The elasticity of supply is typically greater when (A) producers have fewer alternative goods to produce. (B) producers have less time to respond to price changes. (C) producers are operating near...

History The U.S. government borrowed most of the money it needed to pay for its military efforts during World War II. The national debt increased by $23.5 billion in 1943, $64.3 billion in 1944, and...

The World Almanac and Book of Facts includes a section called Noted Personalities, with subsections composed of architects, artists, business leaders, military leaders, philosophers, political...

a. Find the mean for each of the three groups. b. Find the standard deviation for each of the three groups. Refer to the numbers of years that U.S. presidents, popes, and British monarchs lived after...

Experiments and clinical trials with different treatment groups commonly include information about the characteristics of those groups. In a study of four different weight loss programs, each program...

15) Assume Jed Gerbil invested $ 13,891 into an account exactly two years ago. The account has an interest rate of 13.5 % p.a. How much does Jed have in his account today (that is, exactly two years...

Suresh buys a new car for $42000. He pays $3000 down and the rest in 48 monthly payments (at the end of each month). The interest rate is 4% compounded 12 times per year. (All answers to 2 decimal...

i need help asap Question 7 6 pts Julian Company sold goods for a total selling price of $9,500. The sale was made on account. The terms of the safe are 4/20./60. When Julian recorded this credit...