A distribution of values is normal with a mean of 211.4 and a standard deviation of 85.8.
Find P96, which is the score separating the bottom 96% from the top 4%.
P96 =
Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
A distribution of values is normal with a mean of 211.4 and a standard deviation of...
A distribution of values is normal with a mean of 248.5 and a standard deviation of 89. Find P28, which is the score separating the bottom 28% from the top 72%. Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
A distribution of values is normal with a mean of 232.7 and a standard deviation of 54.3. Find P1, which is the score separating the bottom 1% from the top 99%. P1 = Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
A distribution of values is normal with a mean of 47.1 and a standard deviation of 24.2. Find P53, which is the score separating the bottom 53% from the top 47%. P53 = Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
A distribution of values is normal with a mean of 157.8 and a standard deviation of 21.7. Find P11, which is the score separating the bottom 11% from the top 89%. P11 = Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
A distribution of values is normal with a mean of 197.3 and a standard deviation of 26.6. Find P9, which is the score separating the bottom 9% from the top 91%. P9 = 163 Incorrect Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
A distribution of values is normal with a mean of 238 and a standard deviation of 93.7. Find the probability that a randomly selected value is between 219.3 and 481.6. P(219.3<x< 481.6) = Enter your answer as a number accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
A distribution of values is normal with a mean of 160 and a standard deviation of 4. Find the interval containing the middle-most 30% of scores: Enter your answer using interval notation. Example: [2.1,5.6) Your numbers should be accurate to 1 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
A population of values has a normal distribution with u = 44.6 and 0 = 51.1. You intend to draw a random sample of size n = 230. Find P93, which is the score separating the bottom 93% scores from the top 7% scores. P 93 (for single values) = Find P93, which is the mean separating the bottom 93% means from the top 7% means. P93 (for sample means) = Enter your answers as numbers accurate to 1 decimal...
A distribution of values is normal with a mean of 170 and a standard deviation of 12. From this distribution, you are drawing samples of size s7. Find the interval containing the middle-most 50% ofsample means: 171.3 Enter your answer using interval notation. In this context, either inclusive or exclusive intervals would be acceptable. Your numbers should be accurate to 1 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
A distribution of values is normal with a mean of 100 and a standard deviation of 12. From this distribution, you are drawing samples of size 11. Find the interval containing the middle-most 74% of sample means: Enter your answer using interval notation. In this context, either inclusive or exclusive intervals would be acceptable. Your numbers should be accurate to 1 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.