Doing Chauvenets criterion, why isn’t some the di/standard deviation values negative. For example reading 1: 5.30-5.613 would come out negative not positive?

Q: What is the corresponding Z- score, mean is 110, standard deviation is 8 and x is 90

A: In question, We'll find the Z - score for mean 110, standard deviation 8 and x = 90. The solution is…

Q: What is the standard deviation on the graph ?

A:

Q: what if the standard deviation was 30, instead of 60

A:

Q: Scores on a certain standarized test have a mean of 500, and a standard deviation of 50. How common…

A: Given, Mean = μ =500SD = σ = 50

Q: 14. The normal monthly precipitation (in inches) for August is listed for 12 ditterent U.S. cities.…

A:

Q: An IQ test has a mean of 97 and standard deviation of 10. Which is more unusual, an IQ of 87 or an…

A: Given data  μ = 97σ = 10which score is more unusual? 87 or 110?

Q: A simple random sample of 100 observations was taken from a large population. The sample mean and…

A: Given that ,                    sample size n=100                    Mean u=80…

Q: What is the corresponding Z score ? Mean is 70, standard deviation is 10 and X= 89

A: We have to find z score.

Q: The results of a common standardized test used in psychology research is designed so that the…

A: Consider X be a random variable which follows normal distribution indicating the score earned on a…

Q: The results of a common standardized test used in psychology research is designed so that the…

A: The standard normal value helps to understand the number of deviation of observations from the mean.…

Q: What is the mean absolute deviation of 5 scores if their deviation from the mean are 6, -5, 4, 3 and…

A:

Q: Scores on a certain standardized test have a mean of 500, and a standard deviation of 50. How common…

A: Given: Meanμ=500 Standard Deviationσ=50 The probability that the score is between 350 and 400 is…

Q: It is possible to have a standard deviation of -1 for some data set? True or False

A: See the below solution

Q: An honor society wishes to invite those scoring in the top 5% on the College Boards to join their…

A: Given mean score in college boards = 513Standard devaition in scores of college boards = 130We need…

Q: Pattys final exams have an average of 78 and a standard deviation of 6.  If she wants 4% of her…

A: X follows a Normal distribution with mean = 78 and S.D = 6 Then z=(x-mean)/SD = (x-78)/6  follows…

Q: The Psych 230 students finished the course with a total population mean of 130 points and the…

A:

Q: A student will spend 15 hours average each week in class. If the standard deviation is 2 hours, what…

A: Given that mean=15 and standard deviation = 2 Let, X= number of hours spent by a student in the…

Q: Gender Hours of sleep E female 8. female female 6. female 6. female female female 6. female 8.…

A: We have given the data of Gender and hours of sleep. We have to find the mean and standard…

Q: The results of a common standardized test used in psychology research is designed so that the…

A: Given Information: Population mean (u) = 165  Standard deviation (σ) = 10  Score earned by a subject…

Q: The results of a common standardized test used in psychology research is designed so that the…

A:

Q: An IQ test has a mean of 100 and a standard deviation of 15. Which is more unusual, an IQ of 85 or…

A: The objective of this question is to determine which IQ score is more unusual, an IQ of 85 or an IQ…

Q: 2) After doubling all of the scores, the mean was found to be 28 and the standard deviation was 4.…

A: Let's denote the original mean as  and the original standard deviation as .After doubling all of the…

Q: Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard…

A: Introduction: If P4 denotes the 4th percentile, then observations lie below P4 with 4% or 0.04…

Q: Ali scores 70 on Calculus-1 course with a class mean of 68 and a standard deviation of 2, and he…

A: Given: Calculus-1 course:   Introduction to Operating course:   Compare the standard scores of the…

Q: My Physics professor announced that top 18% will get A in the class.               Class mean is 72,…

A: Let X= score of a student  Given that X follows a normal distribution with mean=72 and standard…

Q: What is the z-score if our standard deviation was 2, mean of 49 and our specific observation is 47?

A: Given: Standard deviation = 2 Mean= 49 Specific observation =47 Determine the Z- score using the…

Q: what is the Mean Absolute Deviation? What is it's purpose?

A: Deviation in statistical term defined as a single (or) more number of data values deviated from the…

Q: What is the best approximation of the standard deviation ofthe measures -4, -3.0, 8, and 9?

A: Solution: Let X be the measure. The given data is –4, –3, 8 and 9.

Q: When Emma commutes to work, the amount of time it takes her to arrive is normally distributed with a…

A: Here given data are:

Q: What is the standard deviation of 10, 20, & 30? Show your solution

A: To find- standard deviation.

Q: 1) After 5 pts were added to every score in a sample the mean is found to be 62 and the standard…

A: 5 is added to each value and the obtained mean and standard deviations are 62 and 12 respectively.

Q: The distribution of scores for an exam follow the rule of thumb for standard deviation. If the…

A: Given information: Population meanμ=75. Population standard deviationσ=5. Let X be the scores for…