On a recent quiz, the class mean was 75 with a standard deviation of 2.2. Calculate the z-score (to 2 decimal places) for a person who received a score of 71.
Z score:
Is this unusual?
A) Unusual B) Non-Unusual
On a recent quiz, the class mean was 75 with a standard deviation of 2.2. Calculate...
On a recent quiz, the class mean was 71 with a standard deviation of 2.6. Calculate the Z-score (to 2 decimal places) for a person who received score of 66. Z-score: Is this unusual? Not Unusual Unusual
On a recent quiz, the class mean was 77 with a standard deviation of 2.4. Calculate the z-score (to 2 decimal places) for a person who received score of 81. Z-score: Is this unusual? Not Unusual Unusual
On a recent quiz, the class mean was 76 with a standard deviation of 2.7. Calculate the z-score (to 2 decimal places) for a person who received score of 82. z score = Is this unusual or not unusual?
On a recent quiz, the class mean was 74 with a standard deviation of 3.6. Calculate the 2-score (to 4 decimal places) for a person who received score of 65. Z-score: Is this unusual? Not Unusual Unusual
On a recent quiz, the class mean was 69 with a standard deviation of 2.5. Calculate the z-score (to 2 decimal places) for a person who received score of 78 2-scoro Is this unusual? Yes or No On a recent quiz, the class mean was 69 with a standard deviation of 2.5. Calculate the z-score (to 2 decimal places) for a person who received score of 78 2-scoro Is this unusual? Yes or No
Question 13. Points possible: 1 On a recent the class mean was with a standard deviation of care este decimal places for a person who score of Is this unusual Not Unusual Unus MacBook Air ! @ # sa
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.
A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1479 and the standard deviation was 316. The test scores of four students selected at random are 1880, 1220, 2180, and 1380. Find the z-scores that correspond to each value and determine whether any of the values are unusual. The z-score for 1880 is Round to two decimal places as needed.) The z-score for 1220 is (Round to two decimal places as needed) The...
The mean of a population is 75 and the standard deviation is 14. The shape of the population is unknown. Determine the probability of each of the following occurring from this population. a. A random sample of size 33 yielding a sample mean of 79 or more b. A random sample of size 140 yielding a sample mean of between 73 and 77 c. A random sample of size 218 yielding a sample mean of less than 75.7 (Round all...
a grade of 81 in test in which the mean is 75 and standard deviation is 12, corresponds to a z-score of