A set of data items is normally distributed with a mean of 70 and a standard...
This Question: 1 pt 20 of 35 (18 con A set of data items is normally distributed with a mean of 70 and a standard deviation of 9. Convert 75 to a z-score. 275-0 (Do not round until the final answer. Then round to the nearest hundredth as needed.)
A set of data items is normally distributed with a mean of 30 and a standard deviation of 6.4. Find the data value in the distribution that corresponds to each of the following z-scores. Round your answers to the nearest tenth (one decimal place). Z=-1.5 Answer: ____ Z= 1.6 Answer:_____
A variable x is normally distributed with mean 22 and standard deviation 9. Round your answers to the nearest hundredth as needed. a) Determine the z -score for x = 26 . z = b) Determine the z -score for x = 17 . z = c) What value of x has a z -score of 0.67 ? x = d) What value of x has a z -score of − 0.4 ? x = e) What value of x...
The scores on a psychology exam were normally distributed with a mean of 55 and a standard deviation of 9. What is the standard score for an exam score of 41? The standard score is . (Round to the nearest hundredth as needed.)
The weights of a certain dog breed are approximately normally distributed with a mean of μ = 46 pounds, and a standard deviation of σ = 7 pounds. A dog of this breed weighs 48 pounds. What is the dog's z-score? Round your answer to the nearest hundredth as needed. z= A dog has a z-score of 1.22. What is the dog's weight? Round your answer to the nearest tenth as needed. A dog has a z-score of -1.22....
A variable xx is normally distributed with mean 22 and standard deviation 5. Round your answers to the nearest hundredth as needed. a) Determine the z-score for x=28. b) Determine the z-score for x=18. c) What value of x has a z-score of 1.4? d) What value of x has a z-score of -0.4?
A set of data values is normally distributed with a mean of 65 and standard deviation of five. Determine the Z-score of 78. a. -1.12 b. 2.6 c. 1.12 d. -2.6
The weights of a certain dog breed are approximately normally distributed with a mean of μ μ = 50 pounds, and a standard deviation of σ σ = 7 pounds. A dog of this breed weighs 49 pounds. What is the dog's z-score? Round your answer to the nearest hundredth as needed. z = z= A dog has a z-score of 1.84. What is the dog's weight? Round your answer to the nearest tenth as needed. pounds A dog has...
4 pts If a given data set is normally distributed with a mean of 15 and a standard deviation of 5, what is the z-score that corresponds to a value of 13? Express your answer as a decimal rounded correctly to the hundredths place.
Suppose you have a normally distributed set of data pertaining to a standardized test. The mean score is 1000 and the standard deviation is 200. What is the z-score of 1600 point score?