FREE Trial
Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Statistics. kindly assist: A teacher claims that the students' average score in a particular test is greater than 80%. We collect the results from a

image text in transcribed
image text in transcribed
Statistics. kindly assist: A teacher claims that the students' average score in a particular test is greater than 80%. We collect the results from a sample of 15 students and get that the average score is 77.5%, with a standard deviation of 5%. How sure can we be (highest percentage) that the teacher's claim is false? 95% 97.5% 90% 99%

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Geometry

Geometry

Authors: David A Brannan, Matthew F Esplen, Jeremy J Gray

2nd Edition

1139200658, 9781139200653

More Books

Students also viewed these Mathematics questions

Question

★★★★★
How can a young college graduate gain personal power when moving into a new job as team leader?

Answered: 1 week ago

Question

★★★★★
Find the slope of the curve at the point indicated. y = x 3 - 2x + 7, x = -2

Answered: 1 week ago

Question

★★★★★
At the NBA playoff finals, the championship is awarded in a best-out-of-seven series of games, i.e. the first team to reach four wins is the champion. Assume that in each game, the two teams, say A...

Answered: 1 week ago

Question

★★★★★
The B-string of a guitar is made of steel (density 7800 kg/m3), is 63.5 cm long, and has diameter 0.406 mm. The fundamental frequency is f= 247.0 Hz. (a) Find the string tension. (b) If the tension F...

Answered: 1 week ago

Question

★★★★★
Assume a printer buffer of size 1 0 0 0 0 characters; assume that the physical printing device reads characters from the buffer as 1 0 0 characters at a time. Also assume that applications printing...

Answered: 1 week ago

Question

★★★★★
1.A US citizen purchases CAD 5 million worth of the Canadian corporate bonds. This transaction will be documented as A) A positive entry in US's current account. B) A negative entry in US's financial...

Answered: 1 week ago

Question

★★★★★
3. The Roz trust received taxable income of $20,000 and $10,000 of tax-exempt interest. The trustee paid fiduciary fees of $6,000 and a charitable contribution, as authorized by the trust agreement,...

Answered: 1 week ago

Question

★★★★★
5) If liabilities increase $120,000 during a given period and shareholders' equity decreases $25,000 during the same period, assets must: A) decrease $145,000 B) increase $145,000 C) increase $95,000...

Answered: 1 week ago

Question

★★★★★
Two important profitability measures that investors use in assessing efficiency and effectiveness of a merchandiser's operations are earnings after retail numbers (EARN) and net income dividends and...

Answered: 1 week ago

Question

★★★★★
On June 1, 2025, Ivanhoe Service Co. was started with an initial investment in the company of $19,250 cash. Here are the assets, liabilities, and common stock of the company at June 30, 2025, and the...

Answered: 1 week ago

Question

★★★★★
Konig Enterprises, Limited, owns and operates three restaurants in Vancouver, B.C. The company allocates its fixed administrative expenses to the three restaurants on the basis of sales dollars. Last...

Answered: 1 week ago

Question

★★★★★
Help me answer this two questions. Topic: Hypotheses Testing Draw a normal curve for a 95% confidence and show z = 1.5. What decision can you associate with this z - value? Why? Use the Internet to...

Answered: 1 week ago

Question

★★★★★
Is organizational culture capable of being managed or do chief executives have to tolerate the culture that they inherit?

Answered: 1 week ago

Question

★★★★★
Do different generations have different attitudes towards new technologies such as self-service supermarket checkouts, self-driving taxis, automated bank deposit terminals, and the intelligent...

Answered: 1 week ago

Question

★★★★★
Consider the two approaches towards organizational culture culture is and culture has. Given the vested interests of chief executives, management consultants and business school academics, which one...

Answered: 1 week ago

Previous Question Next Question