A commonly used IQ test is scaled to have a mean of 100 and a standard deviation
Question:
A commonly used IQ test is scaled to have a mean of 100 and a standard deviation of σ = 15. A school counselor was curious about the average IQ of the students in her school and took a random sample of fifty students' IQ scores. The average of these was y = 107.9. Find a 95% confidence interval for the student IQ in the school.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 90% (10 reviews)
Interval Es...View the full answer
Answered By
Lamya S
Highly creative, resourceful and dedicated High School Teacher with a good fluency in English (IELTS- 7.5 band scorer) and an excellent record of successful classroom presentations.
I have more than 2 years experience in tutoring students especially by using my note making strategies.
Especially adept at teaching methods of business functions and management through a positive, and flexible teaching style with the willingness to work beyond the call of duty.
Committed to ongoing professional development and spreading the knowledge within myself to the blooming ones to make them fly with a colorful wing of future.
I do always believe that more than being a teacher who teaches students subjects,...i rather want to be a teacher who wants to teach students how to love learning..
Subjects i handle :
Business studies
Management studies
Operations Management
Organisational Behaviour
Change Management
Research Methodology
Strategy Management
Economics
Human Resource Management
Performance Management
Training
International Business
Business Ethics
Business Communication
Things you can expect from me :
- A clear cut answer
- A detailed conceptual way of explanation
- Simplified answer form of complex topics
- Diagrams and examples filled answers
4.90+
46+ Reviews
54+ Question Solved
Related Book For
Introduction To Mathematical Statistics And Its Applications
ISBN: 9780321693945
5th Edition
Authors: Richard J. Larsen, Morris L. Marx
Question Posted:
Students also viewed these Statistics questions
-
IQ tests have been used for more than a century to try to measure human intelligence. (They were originally intended to identify children who needed special education.) When an IQ test is developed,...
-
A psychologist develops a procedure for improving IQ scores by training subjects to become better at taking tests. A standard IQ test is used for evaluating the effectiveness of the procedure. In...
-
Recall that scores on the Wechsler IQ test are normally distributed with mean 100 points and standard deviation 15 points. a. A students IQ is at the 95th percentile. Find the students IQ. Is it an...
-
A corporate entity has both preferred and common classes of shares. How is the book value of common shares calculated in this case? What is meant by the liquidation value of preferred shares?
-
The following data represent the weights (in grams) of 50 randomly selected quarters. Determine and interpret the quartiles. Does the data set contain any outliers? 5.49 5.58 5.52 5.58 5.53 5.58 5.60...
-
How would you go about estimating the maximum length of time that a worker should be exposed to a particular heat environment?
-
Companies considering purchasing ads during televised XFL football games in the United States are interested in the viewership of games as a way of estimating the exposure their ads get. The file...
-
Bagels, Inc., produces and sells 20 types of bagels by the dozen. Bagels are priced at $6.00 per dozen (or $0.50 each) and cost $0.20 per unit to produce. The company is considering further...
-
The following situation is an example for a fire detection and suppression system in an office building. The Initiating Event (IE) for the Event Tree is "fire starts", with a frequency of once every...
-
At the end of his financial year on 31 July 204, Silas opened a suspense account with a credit balance of $70. a. Suggest one reason why this account was required. After preparing draft financial...
-
For the Major League Baseball seasons from 1950 through 2008, there were fifty-nine nine-inning games in which one of the teams did not manage to get a hit. The data in the table give the number of...
-
In 1927, the year he hit sixty home runs, Babe Ruth batted .356, having collected 192 hits in 540 official at-bats (140). Based on his performance that season, construct a 95% confidence interval for...
-
How easy is it to spot a bubble? Go to the FRED economic database (https://fred.stlouisfed.org/) and search for NASDAQ. You should find the NASDAQ Composite Index. Graph it and click Max to show all...
-
Under the provisions of the Contract Act, 1872 analyse and comment on the following situations: (a) (b) Abid has obtained a loan of Rs. 800,000 from Saqib. Loan was given on the surety of Munib,...
-
Taric needs $30,000 for a down payment going towards a home in 6 years. How much must he deposit now into an account that pays 1.21% interest, compounded quarterly, in order to meet his goal? Round...
-
I don't have clue on how to start this project and I need help on netbeans !!! I have the file guitar.shop.Sqlite Programming Project 4 Products by Category Create a Java with Ant application named...
-
Consider the following Directed Graph G: a h b The graph G is connected. f How many loops does the graph G have? g va The graph G contains a cycle of length 5? Consider performing a breadth first...
-
On January 1 , 2 0 2 3 , Bertrand, Incorporated, paid $ 7 6 , 8 0 0 for a 4 0 percent interest in Chestnut Corporation s common stock. This investee had assets with a book value of $ 2 2 4 , 0 0 0...
-
Find a polynomial that will approximate F(x) throughout the given interval with an error of magnitude less than 10 -3 . (a) [0, 0.5] (b) [0, 1] F(x) = 0 In (1 + 1) t -dt,
-
1A. If the researcher is concerned about the number of variables, the nature of the analysis, and completion rates, then, he/she is at which stage of the sampling design process (Figure 11.1 in the...
-
Construct a circuit for a full subtractor using AND gates, OR gates, and inverters. A full subtractor has two bits and a borrowas input, and produces as output a difference bit and a borrow.
-
Construct a circuit that compares the two-bit integers (x1x0)2 and (y1y0)2, returning an output of 1 when the first of these numbers is larger and an output of 0 otherwise.
-
Use NAND gates to construct circuits with these outputs. a) b) x + y c) xy d) x y
-
You will modify the add method in the LinkedBag class. The add method is the only thing you should modify in LinkedBag. Add a second parameter to the method header that will be a boolean variable:...
-
Generate Random Decals is primitive please fix that as well As a license plate number, integers are to be used. Positive numbers add a car, negative numbers remove a car, zero stops the...
-
Describe the competitive positions in the drone industry and assess the opportunities for at least three positions in the industry.
Study smarter with the SolutionInn App