The temperature at which a certain compound melts is a normal distribution random variable with a mean value of 300 C and a standard deviation of 30 C. What is the probability of finding a temperature higher than 250 C?a. 0.9523b. 0.0634OC. 0.0478d. 0.9456

Answer:- Given, Mean, µ = 300 CStandard deviation, σ = 30 CLet , X be a random variable represents…

Answered: The temperature at which a certain…

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

A single toss of a fair coin results in either 0 or 1 head, each with probability 1/2. Define H = number of headsobtained on a single toss. The mean of H is µH= 0.5 and the standard deviation of H is σ H= 0.5 . Suppose youtoss a fair coin four times. Define T = total number of heads obtained. Find the mean and standard deviation ofT.
Assume that z scores are normally distributed with a mean of 0 and a standard deviation of 1. If P(z < c) = 0.738 , how do you find c?
A population of values has a normal distribution with μ=248.4μ=248.4 and σ=23.6σ=23.6. You intend to draw a random sample of size n=32n=32.Find P18, which is the score separating the bottom 18% scores from the top 82% scores.P18 (for single values) = Find P18, which is the mean separating the bottom 18% means from the top 82% means.P18 (for sample means) = Enter your answers as numbers accurate to 1 decimal place.************NOTE************ round your answer to ONE digit after the decimal point! ***********Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
Assume the random variable X is normally distributed with mean μ=50 and standard deviation σ=7. Compute the probability. Be sure to draw a normal curve with the area corresponding to the probability shaded. P(X>36) Which of the following normal curves corresponds to P(X>36)? A. 36 50 A normal curve has a horizontal axis with two labeled coordinates, 36 and 50. The curve's peak is near the top of the graph at horizontal coordinate 50. Two vertical line segments run from the horizontal axis to the curve at horizontal coordinates 36 and 50. The area under the curve between the vertical line segments is shaded. B. 36 50 A normal curve has a horizontal axis with two labeled coordinates, 36 and 50. The curve's peak is near the top of the graph at horizontal coordinate 50. Two vertical line segments run from the horizontal axis to the curve at horizontal coordinates 36 and 50. The area…
A simple random sample of size n=15is drawn from a population that is normally distributed. The sample mean is found to be x=18.5 and the sample standard deviation is found to be s=6.3. Determine if the population mean is different from 25 at the α=0.01 level of significance. P value_____?
For a population with a mean of u = 60 and a standard deviation of o = 4, a score of X = 56 corresponds to a z-score of z 3-0.50, %3D O True O False
A population of values has a normal distribution with μ=123.9μ=123.9 and σ=17.2σ=17.2. You intend to draw a random sample of size n=17n=17.Find P85, which is the score separating the bottom 85% scores from the top 15% scores.P85 (for single values) = Find P85, which is the mean separating the bottom 85% means from the top 15% means.P85 (for sample means) = Enter your answers as numbers accurate to 1 decimal place.************NOTE************ round your answer to ONE digit after the decimal point! ***********Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If P(z > c) = 0.2974, find c. C =
In a normal distribution, x = 5 and z = –1.4. This tells you that x = 5 is ____ standard deviations to the ____ (right orleft) of the mean.
For a sample with a standard deviation of s = 8, a score of X = 42 corresponds to z = –0.25 what is the mean
A population has a mean of 1398.25 and standard deviation of 246.85 12 What fraction of the means from random samples of size 82 are within ± 40 from the population mean? a 0.8577 b 0.8327 c 0.8085 d 0.7849
The undergraduate grade point averages (UGPA) of students taking an admissions test in a recent year can be approximated by a normal distribution, as shown in the figure. (a) What is the minimum UGPA that would still place a student in the top 10% of UGPAs? (b) Between what two values does the middle 50% of the UGPAs lie? 3.4042.8Grade point average μ=3.40 σ=0.17 x A normal curve labeled mu = 3.40 and sigma = 0.17 is over a horizontal x-axis labeled Grade point average from 2.8 to 4 in increments of 0.3 and is centered on 3.40. (a) The minimum UGPA that would still place a student in the top 10% of UGPAs is nothing. (Round to two decimal places as needed.) (b) The middle 50% of UGPAs lies between nothing on the low end and nothing on the high end. (Round to two decimal places as needed.)

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

The temperature at which a certain compound melts is a normal distribution random variable with a mean value of 300 C and a standard deviation of 30 C. What is the probability of finding a temperature higher than 250 C? Oa, 0.9523 Ob. 0.0634 c. 0.0478 d. 0.9456