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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 77 with a standard deviation of 2.4. Calculate...
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 71 with a standard deviation of 2.6. 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 76 with a standard deviation of 2.7. Calculate...
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...
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
Question 13. Points possible: 1 On a recent the class mean was with a standard deviation...
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
Find the number of standard deviations from the mean. Round your answer to two decimal places...
Find the number of standard deviations from the mean. Round your answer to two decimal places 12) The annual snowfall in a town has a mean of 33 inches and a standard deviation of 12 inches. Last year there were 69 inches of snow. How many standard deviations from the mean is that? Find the z-score corresponding to the given value and use the z-score to determine whether the value is unusual. Consider a score to be unusual if its...
Scores on a quiz are normally distributed with a mean of 9.6 and a standard deviation...
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...
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...
Let Z be the standard normal variable. Find z if z satisfies the given value. (Round...
Let Z be the standard normal variable. Find z if z satisfies the given value. (Round your answer to two decimal places.) P(Z > 2) = 0.9535 z = To be eligible for further consideration, applicants for certain civil service positions must first pass a written qualifying examination on which a score of 75 or more must be obtained. In a recent examination, it was found that the scores were normally distributed with a mean of 70 points and a...
Can someone please explain how to calculate the z-score? I was using the formula z=(x-mean)/standard deviation,...
Can someone please explain how to calculate the z-score?
I was using the formula z=(x-mean)/standard deviation, but it keeps
getting marked incorrect.
In the following data setof tire pressures(psi), determine the Z-score of 83. 2447 45 3 52 | 80 83 58 41 | 81 | 49 97 36 86 6 25 93 2 34 70 Z-score = [three decimal places]
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 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 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
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
Find the number of standard deviations from the mean. Round your answer to two decimal places 12) The annual snowfall in a town has a mean of 33 inches and a standard deviation of 12 inches. Last year there were 69 inches of snow. How many standard deviations from the mean is that? Find the z-score corresponding to the given value and use the z-score to determine whether the value is unusual. Consider a score to be unusual if its...
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...
Let Z be the standard normal variable. Find z if z satisfies the given value. (Round your answer to two decimal places.) P(Z > 2) = 0.9535 z = To be eligible for further consideration, applicants for certain civil service positions must first pass a written qualifying examination on which a score of 75 or more must be obtained. In a recent examination, it was found that the scores were normally distributed with a mean of 70 points and a...
Can someone please explain how to calculate the z-score?
I was using the formula z=(x-mean)/standard deviation, but it keeps
getting marked incorrect.
In the following data setof tire pressures(psi), determine the Z-score of 83. 2447 45 3 52 | 80 83 58 41 | 81 | 49 97 36 86 6 25 93 2 34 70 Z-score = [three decimal places]
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