The scores on a standardized test are normally distributed with a mean of 120 and standard deviation of 5. What test score is 0.3 standard deviations above the mean?

The scores on a standardized test are normally distributed with a mean of 120 and standard deviation of 20. What test score is 0.9 standard deviations above the mean?

The scores on a test are normally distributed with a mean of 150 and a standard deviation of 30. Find the score that is 2 1/2 standard deviations above the mean.

The results of a common standardized test used in psychology research is designed so that the population mean is 175 and the standard deviation is 20. A subject earns a score of 227. What is the z-score for this raw score? Do not round your answer.z-score =    ?

The mean score on a standard test is 450 with a standard deviation of 78. What percent of the test takers scored less than 532(nearest hundredth).

The annual per capita consumption of oranges (in pounds) in the United States  can be approximated by a normal distribution. The mean annual per capita  of oranges is 19.2 with a standard deviation of 4 pounds.  what annual per capita consumption of oranges represents the 5th percentile?

An exam score has a mean of 504 and standard deviation of 90.  What exam score coresponds to a Z-score of 1.60?

korynn is calculating the variability in her data by measuring the average distance of scores from the mean. korynn is calculating the: standard deviation  mode range median

The scores on a standardized test are normally distributed with a mean of 95 and standard deviation of 25. What test score is 0.3 standard deviations below the mean?

The mean SAT score for 13 male highschool students is 500 and the standard deviation is 100. the mean SAT score for 16 female highschool students is 490 and the standard deviation is 80. At a=.05 are male SAT scores higher than female SAT scores? (a=.05)