OL******61*A 45 SA population of values has a normal distribution with = 111.8 and σ = 54.7. You intend to draw arandom sample of size n = 118.Find the probability that a single randomly selected value is greater than 99.2.P(X> 99.2) =Find the probability that a sample of size n = 118 is randomly selected with a mean greater than 99.2.P(M> 99.2) =Enter your answers as numbers accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.Submit QuestionA3ASAUhp

Answered: A population of values has a normal…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A population of values has a normal distribution with mean of 50.6 and standard deviation of 98.9. You sample 222 values from the population. a) Get the z-score for a sample mean of 44. For this problem you use the z score formula z = the sample mean of 44 is above b) This z-score tells you how many or below the population mean u . c) Find the probability that a sample mean is less than 44. Enter your numerical answers as numbers accurate to at least 4 decimal places.
A population of values has a normal distribution with μ=200.6μ=200.6 and σ=20.8σ=20.8. You intend to draw a random sample of size n=236n=236.Find P17, which is the mean separating the bottom 17% means from the top 83% means.The mean = (Use 1 decimal place)
1a. A random variable Z is normally distributed with mean 0 and standard deviation 1. It is known that P(Z 2.4) = b. This is shown in the following diagram. a -1.6 2.4 Find P(-1.6
A population of values has a normal distribution with μ=41.6 and σ=42.6. You intend to draw a random sample of size n=146.Find P53, which is the score separating the bottom 53% scores from the top 47% scores.P53 (for single values) = Find P53, which is the mean separating the bottom 53% means from the top 47% means.P53 (for sample means) = Enter your answers as numbers accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
A population of values has a normal distribution with 45.2 and a 67.7. You intend to draw a random sample of size n = 108. Please answer the following questions, and show your answers to 1 decimal place. Find the value separating the bottom 35% values from the top 65% values. Find the sample mean separating the bottpm 35% sample means from the top 65% sample means.
A random variable follows a normal distribution with mean 12k and variance σ2. The probability that a RV is less than p is 0.9582. knowing that the RV exceeds 10k, the probability that the RV is less than p is 0.95. Calculate σ.
A population of values has a normal distribution with μ=89.6 and σ=35.2. You intend to draw a random sample of size n=32.Find P95, which is the mean separating the bottom 95% means from the top 5% means.The mean =
Researchers were interested in assessing whether stress levels are different at the beginning of the semester compared to finals week. To test this, stress was measured in 5 students at the start of the semester and then again at the end of the semester during finals week. Participant Stress 1 Stress 2 Difference Score (Di) (Di - Mdiff)2 1 22 22 0 2 32 34 -2 3 24 25 -1 4 28 30 -2 5 26 29 -3 What is the observed test statistic (i.e., tobs)? Round to 2 decimal places.
The gestation period of humans follows a normal distribution with a mean of 266 days and a standard deviation of 16 days. Solve for the probability that a random sample of 20 pregnancies has a mean gestation period of 260 days or less. O P(Z > -1.68) = 0.9535 %3D O P(Z 1.68) = 0.0465 %3D
Assuming a population is normally distributed, calculate the probability that a random member of the population falls between 3 standard deviations below the mean and 1 standard deviation below the mean. In other words in mathematical notation: P(-3 < z < -1) Enter your answer in decimal form. For example, 75% should be entered as 0.75.
A sample of n=20 scores has a mean of M=107. Find the z-score for this sample if it was obtained from a population with a mean of μ=109 and a standard deviation of σ=5. Group of answer choices +1.73 -1.79 +0.54 -0.87
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