Scores on a homework are normally distributed with a mean of 78 and a standard deviation of 14. What is the standard score ( z score) for an homework score of 66 ?
standard score for an homework score of 66 is 0.8571
Scores on a homework are normally distributed with a mean of 78 and a standard deviation of...
Solve the problem. Scores on a test are normally distributed with a mean of 78 and a standard deviation of 14. What is the standard score ( 2 score) for an exam score of 66 ? -0.86 -0.67 0.67
Scores on a quiz are normally distributed with a mean of 9.6 and a standard deviation of 3. Compute the z score for a quiz score of 10. Round your final answer to three decimal places.
Question 13 4 pts Z-scores A variable is normally distributed, with mean 118 and standard deviation 30. What is the Z-score when x = 100? (Select] What x value is 1.5 standard deviations above the mean? [Select) > Question 14 6 pts Normal Distribution A variable is normally distributed, with mean 118 and standard deviation 30. What is P(60 SXS 160)? (Select) What is P(x2130)? Select) What is the top 10%? [Select
assume that IQ scores are normally distributed with a mean of 100 and a standard deviation of 15 (as on the Wechsler test). If a gifted program only accepts students with IQ scores in the top 14% what is the minimum IQ score to get to be considered for the program
suppose ACT reading scores are normally distributed with a mean of 21.4 and a standard deviation of 5.9 . A university plans to award scholarships to students who’s scores are in the top 9%. what is the minimum score required for the scholarship? Suppose ACT Reading scores are normally distributed with a mean of 21.4 and a standard deviation of 5.9. A university plans to award scholarships to students whose scores are in the top 9 %. What is the...
Assume that z-scores are normally distributed with a mean of O and a standard deviation of 1. If P(0 < z < a) = 0.4857, find a. a = (Round to two decimal places.)
scores for an exam are normally distributed with a mean of 235 and a standard deviation of 52. Identify the score which marks the boundary of the bottom 5% ?
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...
14. SAT scores are normally distributed with mean = 500 and standard deviation - 100. (Provide your answer and show your steps) (.) What is the SAT score of the 85 percentile? (5 points) What is the probability to score between 430 and 530? (6 points)
15) Assume that z scores are normally distributed with a mean of 0 and a standard deviation 15) of 1. If P(z> c) 0.109, find c. olve the problem. 16) 16) Scores on an English test are normally distributed with a mean of 37.4 and a standard deviation of 7.9. Find the score that separates the top 59% from the bottom 41% 17) Suppose that replacement times for washing machines are normally distributed with a 17) mean of 10.9 years...