Vit is known that the IQ scoresof a group have a standarddeviation of 14. A psychologistrandomly selects 150 people fromthis group and finds that theirmean IQ Score is 116, Based onthis sample, and a 95% confidenceinterval for the thie mean IQ scorefor all person in this group, thengive it's lower limit and upper limitCarry your intermediate computationRoundto at least three decimal places.praceyour answer to one decimalLower limit=upper limit=

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Answered: ✓ tho it is known that the I of a group…

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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コ, ● Question 17 A distribution of values is normal with a mean of 139.3 and a standard deviation of 37.8. Find P. which is the score separating the bottom 64% from the top 36%. 64 PeA Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z or z-scores rounded to 3 decimal places are accepted.
Assume that a randomly selected subject is given a bone density test. Bone density test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find P15, the 15th percentile. This is the bone density score separating the bottom 15% from the top 85%. How to get and what is the bone density score corresponding to P15 is ?
Assume that a randomly selected subject is given a bone density test. Bone density test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find P9, the 9th percentile. This is the bone density score separating the bottom 9% from the top 91%. Which graph represents P9? Choose the correct graph below.
Find the indicated IQ score The graph to the right depicts IQ scores of adults in the scores are normally distributed with a mean of 100 and a standard deviation of 15The indicated IQ score, X is
The lengths of pregnancies in a small rural village are normally distributed with a mean of 265 days and a standard deviation of 16 days. In what range would you expect to find the middle 95% of most pregnancies? Between and If you were to draw samples of size 59 from this population, in what range would you expect to find the middle 95% of most averages for the lengths of pregnancies in the sample? Between and Enter your answers as numbers. Your answers should be accurate to 1 decimal places. Question Help: Message instructor Submit Question 824 tv esc 20 888 F1 F2 F3 F4 F5 F6 @ # $ % & 1 2 4 Q W Y T
The mean score for first exam in your first organic chemistry class (section A) was 60, with a standard deviation of 5. Your score on the exam was 70. A. How many standard deviations above the mean is your score?
A large university is interested in learning about the average time it takes students to drive to campus. The university sampled 51 students and asked each to provide the amount of time they spent traveling to campus. The sample results found that the sample mean was 23.243 minutes and the sample standard deviation was 20.40 minutes. It is desired to determine if the population standard deviation exceeds 20 minutes. When ?=0.05 find test statistic. Round your answer to nearest hundredth.
IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual is randomly chosen. Let X = IQ of an individual. The middle 30% fall between what two values? (round to 2 decimal places)
Age of Senators The average age of senators in the 108" Congress was 57.5 years. If the standard deviation was 13 years, find the z-scores corresponding to the oldest and youngest senators of age 84 and 41. Round z scores to two decimal places. Part: 0 / 2 Part 1 of 2 The z-score corresponding to the oldest senator of age 84 is
The mean amount of time it takes a kidney stone to pass is 15 days and the standard deviation is 5 days. Suppose that one individual is randomly chosen. Let X = time to pass the kidney stone. Round all answers to 4 decimal places where possible. . Find the Inter Quartile Range (IQR) for IQ scores. Round your answers to 2 decimal places.Q1: Q3: IQR:
Los Angeles workers have an average commute of 29 minutes. Suppose the LA commute time is normally distributed with a standard deviation of 12 minutes. Let X the commute time for a randomly selected LA worker. Round all answers to 4 decimal places where possible. Need help on questions B, and C.

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