Find the narrowest interval

Reference no: EM13982864

The GMAT scores of students who are potential applicants to a university are normally distributed with a mean of 487 and a standard deviation of 98.

a. What percentage of students will have scores exceeding 500?

b. What percentage of students will have scores between 600 and 700?

c. If the university wants only the top 75% of the students to be eligible to apply, what should be the minimum GMAT score speci?ed for eligibility?

d. Find the narrowest interval that will contain 75% of the students' scores.

e. Find x such that the interval [x, 2x] will contain 75% of the students' scores. (There are two answers. See if you can ?nd them both.)

Reference no: EM13982864

Questions Cloud

Aylmer''s solution works, but we learn that the birthmark : Aylmer's solution works, but we learn that the birthmark is still "barely perceptible" at the end of the text. What does it say that Aylmer's elixir didn't completely remove the birthmark? b)"Aminadab" laughs at the end of the story when the things ..

When you buy merchandise inventory : R&R Lumber reports gross sales of $70,000. If sales returns and allowances are $10,000 and sales discounts are $3,000, what are the net sales?

Calculate the value at risk : If the loss exceeds $10,000 the company will have to borrow additional cash. What is the probability that the company will have to borrow additional cash? Calculate the value at risk.

What is the international picture of the industry : What is the international picture of the industry like and what are the money making opportunities like in relation to the creation of an E-Sports team?

Find the narrowest interval : If the university wants only the top 75% of the students to be eligible to apply, what should be the minimum GMAT score speci?ed for eligibility? Find the narrowest interval that will contain 75% of the students' scores.

The voltage across a coil whendi/dt= 20 ma/s andl= 8h : The voltage across a coil whendi/dt= 20 mA/s andL= 8H is ?

Problem regarding the mean and the standard deviation : a. Find the distribution of the project duration. Report the mean and the standard deviation. b. If the project duration exceeds 250 days, a penalty will be assessed. What is the probability that the project will be completed within 250 days?

Test for symmetry and then graph each polar equation : Test for symmetry and then graph each polar equation

What is the final energy stored in the capacitor : A 100uF capacitor is initially chargcd to 10V. The capacitor is disconnected from the source that charged it, and then a 1000 Ohm resistor is connected across the capacitor, What is the total initial energy stored in this system,

User Account

All Pages