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

Question

1 Approved Answer

The time to take a 4-hour exit exam is normally distributed with a mean of 120minutes and a standard deviation of 5minutes.Four examinees were randomly

The time to take a 4-hour exit exam is normally distributed with a mean of 120minutes and a standard deviation of 5minutes.Four examinees were randomly selected.What is the probability that the average time that they took the exit exam is less than 127minutes?

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_2

Step: 3

blur-text-image_3

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

Calculus Single Variable

Calculus Single Variable

Authors: Deborah Hughes Hallett, Andrew M Gleason, William G McCallum

8th Edition

1119783836, 9781119783831

More Books

Students also viewed these Mathematics questions

Question

★★★★★
If a hole could be dug to the center of the Earth, would the force on an object of mass m still obey Equation 13.1 there? What do you think the force on m would be at the center of the Earth?

Answered: 1 week ago

Question

★★★★★
Sometimes it is tedious to obtain a solution of a linear equation, especially if all we need is a plot of the solution. In such cases, a numerical method might be preferred. Use a MATLAB ode function...

Answered: 1 week ago

Question

★★★★★
Money Management Interview four people of various ages about their approach to money management. How closely do they track their spending? Do they follow a budget? If not, how do they decide what to...

Answered: 1 week ago

Question

★★★★★
You are given the following information concerning several mutual funds: During the time period the Standard & Poor's stock index exceeded the Treasury bill rate by 10.5 percent (i.e., rm - rf =...

Answered: 1 week ago

Question

★★★★★
10. The standard rate per hour for direct labor should not include an allowance for fringe benefits since these benefits represent an element of manufacturing overbead. True False 1I. The general...

Answered: 1 week ago

Question

★★★★★
You are the executive assistant to the director of sales at B-Trendz, Inc., a trendy retail store that has locations in only ten states. The company is considering branching into the online retail...

Answered: 1 week ago

Question

★★★★★
washed off within 5 minutes. For the other 500 subjects, the oil was washed off after 5 minutes. The results are summarized in the following table. Time Within Which Oil Was Washed Off Reaction...

Answered: 1 week ago

Question

★★★★★
Scenario: Generally, we have considered sexual harassment actions or verbal abuse of women to be done by men. Over the past several decades, the culture of society has evolved. The diversity of sex...

Answered: 1 week ago

Question

★★★★★
Global cities are performing a differentiated function within a global network of exchange and they play specific roles in specific networks. What are examples of such roles and networks? Taipei and...

Answered: 1 week ago

Question

★★★★★
Nomsa feels her low performance rating is unfair as she was not aware of all the concerns and deadlines. During which stage can Nomsa raise her dissatisfaction? a. Performance contract b. Performance...

Answered: 1 week ago

Question

★★★★★
A coal-powered power plant requires a heat transfer of 2.5 x 1014 J into the plant is per full day of operation, with an efficiency of 36%. If the turbines in the power plant were upgraded to improve...

Answered: 1 week ago

Question

★★★★★
A train approaches a station at a constant speed, sounding its whistle continuously. Three students are discussing what an observer standing at a station would hear as the train is approaching:...

Answered: 1 week ago

Question

★★★★★
Book: An Intro to Combustion 4th ed. by Turns and Haworth Rank these fuels in decreasing order of reactivity: H2, CH4, CO. For a given equivalence ratio, plot (qualitatively) the product gas...

Answered: 1 week ago

Question

★★★★★
Engage everyone in the dialogue

Answered: 1 week ago

Question

★★★★★
1. Given your basic mental state, i.e. the state you often return to. Give this state a name that you recognize and that is easy to remember, such as irritability, frustration, joy, etc. Also give...

Answered: 1 week ago

Question

★★★★★
5. The next time a negative event occurs, or a negative memory occurs, think about how you need to perform to make this a success story.

Answered: 1 week ago

Previous Question Next Question