Please answer the exercise and sketch the normal curve b. Step 1. Convert the score 38 to z-scoreZ=X-XS=38 - 454Z = -1.75Step 2. Sketch the normal curve.-1.7538Let A = area below z = -1.75A₁ = area between z = 0 and z = -1.75A₂ = area of half the curveFrom the table,A₁ = 0.4599A = A₂ - A₁= 0.5-0.4599A = 0.0401The probability that a score picked up at random will lie below 38 is 0.0401.Practice/Exercises: Solve the following problems.1. A normal distribution of scores has a mean of 120 and a standard deviation of 20. What scoreseparates the top 40% of the scores from the rest?A2A1045

Given: Mean μ=120 Standard deviation σ=20

Answered: Practice/Exercises: Solve the following…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Two χ2-curves have degrees of freedom 12 and 20, respectively. Which curve more closely resembles a normal curve? Explain your answer.
Which of the following is not a property of a normal curve? A. Bell-shaped B. Symmetrical to the mean C. Intersects the horizontal axis D. Contains two inflection points
please help with this question??
What is a name for the curve that has the mean, median and mode at the center? Mesokurtic Platykurtic Gaussian
For the standard norml curve, find the z-score that corresponds to the first decile.
the temperature of a coffee cup is 185.3 degrees, is it a discrete or a continuos data set?
3) The average rent for a condo/duplex listed in the Sacramento News & Review “Classified" ads in December, 2003 is $882 and the standard deviation is $204 per month. Let Y be the monthly rent for a condo/duplex in the Sacramento area. a. Sketch the curve and find P(Y < $600) b. Sketch the curve and find P(S600 < Y < $800).
A California lake has been stocked with rainbow trout. These trout have an average length of 24 inches, with a standard deviation of 3 inches. Someone goes fishing and catches a trout that is 26.25 inches long. Express the length of this trout in standard units, relative to all the trout that were used to stock the lake. Choose the answer below that is closest.
please show complete solution. last 30 mins left thank you!
can you solve parts e), f), and g), thank you and can you include the curves shaded where needed to be. thanks!
Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. A symmetric bell-shaped curve is plotted over a horizontal scale. Two vertical lines run from the scale to the curve at labeled coordinates 106 and 126, which are both to the right of the curve’s center and peak. The area under the curve between the vertical lines is shaded. Question content area bottom Part 1 The area of the shaded region is enter your response here. (Round to four decimal places as needed.)
The histogram of the number of hours of sleep Stat 100 students reported getting each night roughly follows the normal curve with an average of 7.0 hours and a SD of 1.2 hours. a. Approximately 68% of the students sleep between hours and hot (Put the smaller number first) 提交答案|Tries 0/5 b. Approximately 95% of the students sleep between hours and hours. (Put the smaller number first) 提交答案| Tries 0/5 c. If a student sleeps 5.2 hours per night what percent of the people sleep more than her? Do the problem in steps: I. First, find the Z score = 提交答案|Tries 0/3 ii. Now, move the red vertical line on the following graph to the correct Z score by clicking and dragging the mouse. If you are using a touch screen, touch and then slide the region around the vertical line 1.00 Shade the region representing the percent of people who sleep more than her: Shade the region under the normal curve to the O left of the red vertical line O right of the red vertical line

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS

Practice/Exercises: Solve the following problems. 1. A normal distribution of scores has a mean of 120 and a standard deviation of 20. What score separates the top 40% of the scores from the rest?