67% out of 150 pupils from school A passed an exam; 62% of 120 pupils at school...

Question:

67% out of 150 pupils from school A passed an exam; 62% of 120 pupils at school B passed. Estimate the 99% confidence interval for the true difference between the proportions passing the exam.

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

Step by Step Answer:

Related Book For book-img-for-question

Statistics For Economics Accounting And Business Studies

ISBN: 978027368308

4th Edition

Authors: Michael Barrow

See More Books

Question Posted: Aug 25, 2020 08:19 AM

See More Questions

a. z a / 2 for the 99% confidence interval b. z a / 2 for the 98% confidence interval c. z a / 2 for the 95% confidence interval d. z a / 2 for the 90% confidence interval e. z a / 2 for the 94%...
A sample of 60 night-school students' ages is obtained in order to estimate the mean age of night-school students years. The population variance is 16. a. Give a point estimate for . b. Find the 95%...
A random sample of 24 observations is used to estimate the population mean. The sample mean and the sample standard deviation are calculated as 104.6 and 28.8, respectively. Assume that the...
Compare sand, die, investment, lost foam, and continuous casting techniques.
In Problems 63-66, the left sum Ln or the right sum Rn is used to approximate the definite integral to the indicated accuracy. How large must n be chosen in each case? (Each function is increasing...
1.Irksome Power Co. has learned that its rival utility company has offered to supply a business with electricity for ten years for $50,000 up front and a further $20,000 per year. If Irksome Power...
Find an example of a spaghetti plot and click on the image. You can answer the following questions using either the default variables and cases, or else use the menu on the left to select variables...
The adjusted trial balance for Online Advertising Services is presented below. Requirements 1. Prepare the income statement for the year ending December 31, 2016. 2. Prepare the statement of retained...
1. Point our the major impacts of inflation 2. Discuss the different types of unemployment?
You are the chief financial officer for a small manufacturing company that has applied for a bank loan. In speaking with the bank loan officer, you are told that two minimum criteria for granting...
(a) A sample of 200 women from the labour force found an average wage of 6000 p.a. with standard deviation 2500. A sample of 100 men found an average wage of 8000 with standard deviation 1500....
(a) A sample of 954 adults in early 1987 found that 23% of them held shares. Given a UK adult population of 41 million and assuming a proper random sample was taken, find the 95% confidence interval...
What type of activity is prohibited by Section 1 of the Sherman Act? What type of activity is prohibited by Section 2 of the Sherman Act?
How are the number of significant figures determined for the results of calculations involving (a) multiplication, (b) division, (c) addition, and (d) subtraction?
You are told that the volume of a sphere is given by V = d3/6, where V is the volume and d is the diameter of the sphere. Is this equation dimensionally correct?
Can unit analysis tell you whether you have used the correct equation in solving a problem? Explain.
Explain why 1 mL is equivalent to 1 cm3.
How many (a) quarts and (b) gallons are there in 10.0 L?
Rebecca sells her personal scooter for $550. She purchased the scooter for $700 three years ago. In addition, Rebecca sells a painting for $1,200 that she acquired five years ago for $900. What are...
Provide a few individual examples who revealed what aspects of emotional intelligence?
What is the sensitivity of the test? Mental Health The Chinese Mini-Mental Status Test (CMMS) consists of 114 items intended to identify people with Alzheimers disease and senile dementia among...
What is the specificity of the test? Mental Health The Chinese Mini-Mental Status Test (CMMS) consists of 114 items intended to identify people with Alzheimers disease and senile dementia among...
The cutoff value of 20 on the CMMS used to identify people with dementia is arbitrary. Suppose we consider changing the cutoff. What are the sensitivity and specificity if cutoffs of 5, 10, 15, 20,...
Fat Cat Brewery (FCB) sells beer containing labels displaying a cat making a rude gesture with the middle finger. FCB's distributor, Robillio Distillery, applied to the Tennessee Alcoholic Beverage...
Age of Empires IV allows players to choose one of a set of asymmetric factions to control in a real time strategy contest. One of the challenges of asymmetric factions is balancing the abilities of...
Please select two sports or recreation facilities online. One facility should be an old venue (e.g.,Fenway Park in Boston) and the other needs to be a new venue (e.g.,Allegiant Stadium in Las Vegas)....

67% out of 150 pupils from school A passed an exam; 62% of 120 pupils at school...

Question:

Step by Step Answer:

67 100 1005 744 are passed 150 X x 1005 sum n 99 co...View the full answer

Statistics For Economics Accounting And Business Studies

Students also viewed these Mathematics questions