. In a distribution with a mean of 100 and a standard deviation of 15, what is the probability that a score will be 115 or higher? Show all the steps of the calculation in Excel.
a. 16%
b. 34%
c. 50%
d. 84%
I know the answer is A., I know the porb of >1 is 1.5866, but I dont know how to show this in excell, and im not really sure what im doing with that extra yellow box :/
. In a distribution with a mean of 100 and a standard deviation of 15, what...
In the state of Kentucky, the mean SAT math score is 600 with standard deviation 75. A school system in Smithville decides to study if their scores are statistically less than the state. They gather data from 51 students in their district. Mean 536.72549 Std Dev 33.670805 Std Err Mean 4.7148558 Upper 95% Mean 546.19556 Lower 95% Mean 527.25542 N 51 Hypothesized Value 600 Actual Estimate 536.725 DF 50 Std Dev 33.6708 Sigma given 75 z Test Test Statistic -6.0249...
The mean IQ score of adults is 100 , with a standard deviation of 15 . Use the Empirical Rule to find the percentage of adults with scores between 85 and 115 . (Assume the data set has a bell-shaped distribution
A distribution of scores has a mean of ?=100 and a standard deviation of ?=10. For an x value of 140, calculate the corresponding z-score.Can you also interpret what the z-score of x means (x=140)?
Gifted cutoff score is 130. IQ mean is 100, Standard deviation is 15. If I barely made the cut, what is my Z-score?
IQ-scores are standard-score transformed scores having a mean of 100 and a standard deviation of 15; SAT scores are standard-score transformed scores having a mean of 500 and a standard deviation of 100. In what follows, X refers to a raw score from a distribution with a mean of X and a standard deviation of S, and SAT and IQ refer to the corresponding transform of that score. Solve for the missing value in each of the following: (a) X=-2.5;Xmean=...
1. The typical IQ test is designed with a mean of 100 and standard deviation of 15. Find Z score corresponding to IQ score of 128 (4 points) Z=
1. The typical IQ test is designed with a mean of 100 and standard deviation of 15. Find Z score corresponding to IQ score of 128 (4 points) Z=
On IQ distribution (normal) , with a mean of 100 and a standard deviation of 15 , find the actual IQs (raw scores) for individuals with the following z scores. 1) .60 2) 2.60 3) -1.80 4) -.20 5) 2.80
Assume the mean of a normal distribution is 100 and the standard deviation is 15. (steps please) Convert the following individual raw scores to z-scores: i. Jason: 86 ii. Taylor: 113 iii. Amanda: 102 iv. Bill: 37 v. Jessica: 145
4. On standard IQ tests, the mean is 100 with standard deviation 15. The results are very close to fitting a normal curve. Suppose the IQ test is given to a very large group of people. Find the percentage of people whose IQ score is: a) Greater than 130 b) Less than 85 c) Between 85 and 115. d) To join Mensa, one must be in the 98th percentile among all people taking the IQ test. What is the cut...
Find the indicated score. The graph depicts the standard normal distribution with mean and standard deviation 1 Click to view page 1o the table Click to view page of the The indicated z score is Round to two decimal places as needed Find the area of the shaded region. The graph to the right depicts I scores of adults and those scores we normally distributed with a mean of 100 and a standard deviation of 15 Click to view.age 1...