Question: based on the overall score for the students. In a particular semester, the scores are normally distributed with a mean score of =78 and a

based on the overall score for the students. In a particular semester, the scores are normally distributed with a mean score of =78 and a standard deviation 0=6. Professor decides to give "A" to the top 14% of the students. What is the minimum score a student can get and still get an "A"? A. 87.9 B. 84.5 C. 85.7 D. 89.8 E. 90.0 Z denotes the standard normal random variable. P(-1.26 s z ) is approximately

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 Mathematics Questions!

On January 1, 2016, Drugz Inc., a large pharmaceutical company, commenced business operations in Canada. The following information is available: 2018 2019 2020 2021 Reported Income (loss) before tax...

7. The annual 2-mile fun-run is a traditional fund-raising event to support local arts and sciences activities. It is known that the mean and standard deviation of finish times for this event are...

9.5 Hypothesis Testing A car dealer at Acme Motors claims that the average price of cars on his lot is not equal to $14100. Assuming that the population is normally distributed and the population...

Question 3 Mr. Mape is currently conducting a study which aims to determine the effectiveness of cooperative grouping as a strategy in Not yet answered improving the mathematics performance of Grade...

1.) A new large-scale test that is designed to measure work satisfaction in a remote environment is administered to a sample of n = 5,000 individuals in California. Based on the test results, it...

4. The MCAT is a standardized test for admission to medical schools. A student wanting to become a doctor takes the MCAT and scores a 27. Of all the students that took this exam the average was 2.50...

The waiting times between a subway departure schedule and the arrival of a passenger are uniformly distributed between 0 and 7 minutes. Find the probability that a randomly selected passenger has a...

1) IQ Scores are normally distributed with a mean of 100 and a standard deviation of 15. Select a random person and find the probability... Round result to FOUR decimal places a) Their IQ score is...

THIS IS FOR STAT PLEASE ASNWER CLEARLY Q1 ( A value of x= 2.9 ( IS OR IS NOT ) possible because x is a ( CONTINOUES OR DIRCRITE) random variable. In a recent year, a hospital had 4226 births. Find...

6. Match each of the following statements with the terms and values below: 1.The sampling distribution of the sample mean becomes approximately normal asnnbecomes large 2. (Upper confidence limit -...

This is statistics course and s ampling and Central Limit lesson I need help with those questions. Thank you. And I attached formula sheet in case you need it for the references. \fII. Probability...

Every month, each employee in your department is expected to give a brief oral presentation on status of his or her project. However, your department has recently hired an employee, originally from...

A device with no moving parts provides a steady stream of dulled air at - 25 C and I bar. The feed to the device is compressed air at 25C and 5 bar. In addition to the stream of chilled air, a second...

8 - 1 Calculate the ( a ) expected return, ( b ) standard deviation, and ( c ) coefficient of variation for an investment with the following probability distribution: ( LO 8 - 2 ) \ table [ [...

Q5: Line Balancing Decision: At PRIMO'S restaurant, the processing sequence of preparing their Sea Ranch Pizza implies the activities shown in the following table. Moreover, they have a goal to...