The scores on two standardized tests are normally distributed. The first test had a mean of...
SHOW WORK! The scores on two standardized tests are normally distributed. The first test had a mean of 56 and a standard deviation of 6. The second test had a mean of 76 and a standard deviation of 6. What score would you need on the second test to equal a score of 70 on the first test? Give answer to the nearest whole number.
A standardized test's scores are normally distributed with a mean a 500 and a standard deviation of 100. If 1200 students take the test, how many would you expect to score over 650? Round your answer to the nearest whole number.
Scores on a standardized test are normally distributed with a mean of 100 and a standard deviation of 20. If these scores are converted to standard normal Z scores, which of the following statements will be correct?
A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1466 and the standard deviation was 310. The test scores of four students selected at random are 1860 1200 2160 and 1360. Find the z-scores that correspond to each value and determine whether any of the values are unusual.
the scores on the accuplacer test and High School GPAs are normally distributed. The Accuplacer test had a mean of 40 and a standard deviation of 10. High School GPAs had a mean of 2.5 and a standard deviation of 0.1. What high school GPA do you need to equal a score of 44 on the Accuplacer test? Give answer to two decimal places
Scores on a test are normally distributed with a mean of 65 and a standard deviation of 10. Find the score to the nearest whole number which separates the bottom 81% from the top 19%. A. 88 B. 68 C. 56 D 74
Professor Blockhus gives two different statistics tests, but one test is harder than the other. Scores on test A are normally distributed with a mean score of 78 and a standard deviation of 6. Scores on test B are also normally distributed but with a mean score of 65 and a standard deviation of 9. If Erik scored an 79 on test B, what percent of the class scored below him? That is, what is his percentile on test B.
In a recent year, the total scores for a certain standardized test were normally distributed, with a mean of 500 and a standard deviation of 10.3. Answer parts (a)dash(d) below. (a) Find the probability that a randomly selected medical student who took the test had a total score that was less than 492.
In a recent year, the total scores for a certain standardized test were normally distributed, with a mean of 500 and a standard deviation of 10.4. Find the probability that a randomly selected medical student who took the test had a total score that was more than 530. The probability that a randomly selected medical student who took the test had a total score that was more than 530 is _______
In a recent year, the total scores for a certain standardized test were normally distributed, with a mean of 500 and a standard deviation of 10.6. Find the probability that a randomly selected medical student who took the test had a total score that was more than 529. The probability that a randomly selected medical student who took the test had a total score that was more than 529 is _______