Question: CR7.19 Consider the variable x 5 time required for a college student to complete a standardized exam Suppose that for the population of students at

CR7.19 Consider the variable x 5 time required for a college student to complete a standardized exam Suppose that for the population of students at a particular university, the distribution of x is well approximated by a normal distribution with mean 45 minutes and standard deviation 5 minutes.

a. If 50 minutes is allowed for the exam, what proportion of students at this university would be unable to finish in the allotted time?

b. How much time should be allowed for the exam if we wanted 90% of the students taking the test to be able to finish in the allotted time?

c. How much time is required for the fastest 25% of all students to complete the exam?

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Statistics For Experimentert Questions!

3015(o complete) orporate sales and consumer sales and two support departments uman resources and information systems. yees to allocate human resources costs and processing time to allocate...

Consider the variable x = time required for a college student to complete a standardized exam. Suppose that for the population of students at a particular university, the distribution of x is well...

=+7.32 Consider the variable x 5 time required for a college student to complete a standardized exam. Suppose that for the population of students at a particular university, the distribution of x is...

CR7.19 Consider the variable x time required for a college student to complete a standardized exam. Suppose that for the population of students at a particular university, the distribution of x is...

Safari File Edit View History Bookmarks Window Help ONE X 89% [ Tue 12:32 PM QE .. . webassign.net C Grades: View Mail - Caiden Mcduffie - Outlook MAT-152-50POL 2021FA: Exam 1 Review: Modu... Final...

Consider the variable x Time required for a college student to complete a standardized exam Suppose that for the population of students at a particular university the distribution approximated by a...

Statistics and Probabilities 9. Consider the variable x = time required for a college student to complete a standardized exam. Suppose that for the population of students at a partielar university,...

Hi, can someone help me with these questions? (1 point) The amount of time it takes for a student to complete a statistics exam is given by a random variable that is uniformly distributed between 34...

At a certain college, it is estimated that at most 20% of the students ride bicycles to class. Does this seem to be a valid estimate if, in a random sample of 87 college students, 21 are found to...

(b) A homemade compound microscope has, an objective and eyepiece, thin lenses of focal length 1 cm and 3 cm, respectively. An object is situated at distance of 1.20 cm from the objective. If the...

Consider the speed of the point where scissors blades meet when the scissors are closed. The closer the blades are to being closed, the faster the point moves. The point could, in principle, move...

What advantage does loratadine ( Claritin ? * * ) have over traditional antihistamines such as diphenhydramine ( Eenadry ? * * ) ? Increased bronchosilation neveressed risk ed carifiac divut yltmias...

Use a change of variables to find the following indefinite integrals. Check your work by differentiation. [x(x+ x(x4 + 16)6 dx

Addiction Medicine. The report Addiction Medicine: Closing the Gap between Science and Practice from the National Center on Addiction and Substance Abuse at Columbia University reveals that addiction...

Holiday Depression. According to the Opinion Research Corporation, 44% of U.S. women suffer from holiday depression, and, from the U.S. Census Bureaus Current Population Reports, 52% of U.S. adults...

Suppose that C, D, and E are independent events such that P(C) = 3/7, P(D) = 5/11, and P(E) = 5/7. Find P(C & D & E). Applying the Concepts and Skills

Colson Company has a line of credit with Federal Bank. Colson can borrow up to $423,000 at any time over the course of the Year 1 calendar year. The following table shows the prime rate expressed as...

Required information [The following information applies to the questions displayed below) A process manufacturer reports the following: Beginning work in process inventory Units started this period...

Framing House, Inc. produces and sells picture frames. Variable costs are expected to be $19 per frame; fixed costs for the year are expected to total $210,000. The budgeted selling price is $27 per...