4 pts If a given data set is normally distributed with a mean of 15 and...
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:_____
Question 4 0.5 pts A data set has a mean of 44. In this data set, a raw score X-40 corresponds to the standardized score z-1. What is the standard deviation for this data set? Hint:take advantage of the formula for Z-score Question 5 0.5 pts A data set has a standard deviation of 2.5. In this data set, a raw score X-30 corresponds to the standardized score z = 1.30. What is the mean of this data set? Hint:take...
Use the following info for 17-19. A normally distributed data set has a mean of 100 and a standard deviation of 10. 17. What percentage of values are greater than 90? 18. What percentage of values are less than 90? 19. What z score corresponds to a value of 110? 20. What z score corresponds to a value of 90
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.)
Question 13 4 pts Z-scores A variable is normally distributed, with mean 118 and standard deviation 30. What is the Z-score when x = 100? (Select] What x value is 1.5 standard deviations above the mean? [Select) > Question 14 6 pts Normal Distribution A variable is normally distributed, with mean 118 and standard deviation 30. What is P(60 SXS 160)? (Select) What is P(x2130)? Select) What is the top 10%? [Select
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
all questions. Do not round answers 1. IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. a. What percentage of scores is between 55 and i 15? b. In a group of 20,000 randomly selected individuals, how many have an IQ score of 130 or more? 2. A Honda Civic has its gas mileage (in miles per gallon, or mpg) normally distributed, with a mean of 33 mpg and a standard deviation of...
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?
The family incomes in a town are normally distributed with a mean of $1300 and a standard deviation of $600 per month. If a given family has a monthly income of $1000, what is the z-score for this family's income? (round to the hundredths place) Flag this Question Question 90.6 pts The family incomes in a town are normally distributed with a mean of $1300 and a standard deviation of $600 per month. If a given family has a monthly...
Heights of 13 year old males in the USA are normally distributed with a mean of 60 inches and a standard deviation of 2 inches. Find the probability that a randomly selected 13 year old male in the USA has a height more than 58 inches. (Write your answer as a decimal number, rounded to the nearest hundredth) Heights of 13 year old males in the USA are normally distributed with a mean of 60 inches and a standard deviation...