if you have a mean of 100 and a standard deviation of 15 find the value corresponding to the 88th percentile.
if you have a mean of 100 and a standard deviation of 15 find the value...
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=
all questions. Do not round answers 1. IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. a. What percentage of scores is between 55 and i 15? b. In a group of 20,000 randomly selected individuals, how many have an IQ score of 130 or more? 2. A Honda Civic has its gas mileage (in miles per gallon, or mpg) normally distributed, with a mean of 33 mpg and a standard deviation of...
Assume that the readings on the thermometers are normally distributed with a mean of 0° and standard deviation of 1.00°C. A thermometer is randomly selected and tested Draw a sketch and find the temperature reading corresponding to the 88th percentile. This is the temperature reading separating the bottom 88% from the top 12%.Which graph represents Psa? Choose the correct graph below The temperature for Pas is approximately _______ (Round to two decimal places as needed)
A variable has a mean of 100 and a standard deviation of 15. Nine observations of this variable have a mean of 112 and a sample standard deviation of 12. Determine the observed value of the standardized version of the mean and the studentized version of the mean.
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...
A variable has a mean of 100 and a standard deviation of 15. Nine observations of this variable have a mean of 116 and a sample standard deviation of 12. Determine the observed value of the a. standardized version of x overbar. b. studentized version of x overbar.
A 100-item test has a mean of 75 and standard deviation of 10. Assuming the scores are normally distributed determine the raw score (rounded to the nearest integer) corresponding to the 25th percentile. (Fill in the corresponding blanks)
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=...
5. A history test has a mean of 100 and a standard deviation of 10. Find the z-score for the test score 130. (5 points) Gientb, ind the allovings (5 points each) 18 27 21 42 38 25 30 35 17 40 28 20 a. The percentile rank of 28. b. The score that corresponds 80* percentile. 7. (10 points each) a. Given the data below , Use the b. Construct the box plot of the data outliner procedure to...
On a iq test with a mean of 100 and a standard deviation of 16, at approximately what percentile will an iq if 104 falls