Scores on an IQ test are normally distributed A sample of 25 IQ scores had standard deviation s 8 a Construct a 95 confidence interval for the population standard deviation b The developer of the test claims that the population standard deviation is 15 Does this confidence interval contradict this ...

The Answer is in the image, click to view ...

Scores on an IQ test are normally distributed. A sample of 25 IQ scores had standard deviation

Question:

Scores on an IQ test are normally distributed. A sample of 25 IQ scores had standard deviation s = 8.

a. Construct a 95% confidence interval for the population standard deviation σ.

b. The developer of the test claims that the population standard deviation is σ = 15.

Does this confidence interval contradict this claim? Explain.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Elementary Statistics

ISBN: 9781259969454

3rd Edition

Authors: William Navidi, Barry Monk

See More Books

Question Posted: May 07, 2024 12:02 PM

See More Questions

For a manufacturing company, which of the following is an example of a period cost rather than a product cost? a. Depreciation on factory equipment b. Wages of salespersons c. Wages of machine...
Scores on an IQ test are normally distributed. A sample of 18 IQ scores had standard deviation s = 8. Construct a 95% confidence interval for the population variance 2 .
"The company developed a Price Master File which captures the price in which inventory should be purchased from suppliers and the price is in which it should be sold to customers. Employees do not...
Define pricing practices of tesla INC as well as market structure.
Let denote the L2 inner product on the interval [0, ]. Suppose u(x) satisfies u(0) = u(t) = 0. Write out the integration by parts formula (Î´y, u) = (Ïy, u) = - (Ïy,u'). and...
The governor and his college- age daughter are talking after dinner. The governor has had a rough day at the office discussing the states budget problems. The daughter is home on vacation after...
What the general requirements are for all motions?
On June 30, 2017, Mischa Auer Company issued $4,000,000 face value of 13%, 20-year bonds at $4,300,920, a yield of 12%. Auer uses the effective-interest method to amortize bond premium or discount....
Company sold a flight equipment for $15 million cash at the end of its 17th year of use. The flight equipment originally cost $75.5 million and was depreciated using the straight-line method with...
Following are weights of 12 two-month-old baby girls. Assume that the population is normally distributed. a. Find the sample standard deviation s. b. Construct a 95% confidence interval for the...
Scores on the math SAT are normally distributed. A sample of 20 SAT scores had standard deviation s = 87. a. Construct a 98% confidence interval for the population standard deviation . b. Someone...
Comment on the following statement The maintenance stage of the SDLC involves making trivial changes to accommodate changes in user needs.
We Supply Ltd is a small shop in Sasolburg. The following information for WeSupply Ltd is available: R Sales 300 000 Earnings after interest and tax 150 000 Preference dividends due 20 000 Preference...
Find the equation of the line tangent to the graph of y=2x3-9x2+2x-6 at x=1. NOTE: Enter a complete equation of a line. Line equation:
By using the affected department's operational funds. By using capital funds. By using the FM organization's capital funds and no reimbursement is made. By using the FM organization's operational...
Research and outline the options for geotechnical investigation for a tunnelling project. What are the options and why did you select these?
1)what the need for RCSA policies and the importance of RCSAs with information security as a focal point. 2)a list that explains the relevance of RCSA policies. Provide references.
What are the two statements known as the Carnot principles?
Experiment: Tossing four coins Event: Getting three heads Identify the sample space of the probability experiment and determine the number of outcomes in the event. Draw a tree diagram when...
On November 1, 20X8, your company signs a $10,000 purchase commitment for goods to be delivered on February 15, 20X9. At year-end 20X8, the estimated value of the goods on order is $7,500. a. What is...
The magnitudes of the four displacement vectors shown in the drawing are A = 1 5 . 0 m , B = 1 1 . 0 m , C = 1 0 . 0 m , and D = 32.0 m . Determine the ( a ) magnitude and ( b ) direction for the...
On December 31, 2024, the company's fiscal year-end, the book value of the assets of the horse division was $460,000. On th date, the fair value of the assets, less costs to sell, was $400,000. The...

Scores on an IQ test are normally distributed. A sample of 25 IQ scores had standard deviation

Question:

Step by Step Answer:

Elementary Statistics

Students also viewed these Business questions