Question Suppose X∼N(12.5,1.5), and x=11. Find and interpret the z-score of the standardized normal random variable. Provide your answer below: The z-score when x=11 is . The mean is . This z-score tells you that x=11 is standard deviation(s) to the left of the mean
Question Suppose X∼N(12.5,1.5), and x=11. Find and interpret the z-score of the standardized normal random variable....
Standardize a Normally Distributed Random Varlable Question Suppose X~N(13.5, 1.5), and 9. Find and interpret the z-score of the standardized normal random variable. Sorry, that's incorrect. Try again? The mean is The z-score when x-9 is standard deviations to the left of the mean. This z-score tells you that x-9 is Standardize a Normally Distributed Random Varlable Question Suppose X~N(13.5, 1.5), and 9. Find and interpret the z-score of the standardized normal random variable. Sorry, that's incorrect. Try again? The...
Suppose x is a normal random variable with mean u and standard deviation o. If z is the standardized normal random variable of x, which of the following statements is false? (1) When r = y, the value of z=0. (2) When z is less than the mean y, the value of z is negative. (3) When r is greater than the mean y, the value of z is positive. (4) It is always the case that z <I.
Suppose X is a normal random variable with mean u = 50 and standard deviation o = 11. (a) Compute the z-value corresponding to X = 36. (b) Suppose the area under the standard normal curve to the left of the Z-value found in part (a) is 0.1016. What is the area under the normal curve to the left of X = 36? (c) What is the area under the normal curve to the right of X = 36? (a)...
0.67 of 1 Point Question Help (2) 7.2 RA-1 Suppose X is a normal random variable with mean j = 45 and standard deviation o= 11. (a) Compute the Z-value corresponding to X = 28. (b) Suppose the area under the standard normal curve to the left of the z-value found in part (a) is 0.0611. What is the area under the normal curve to the left of X= 28? (c) What is the area under the normal curve to...
Question 1 1 pts Suppose X is a normal random variable with a mean equal to 50 and a standard deviation equal to 5. Find the value of: PIX < 60) Your answer should include four decimal places. Question 2 1 pts Suppose X is a normal random variable with a mean equal to 50 and a standard deviation equal to 5. Find the value of: PIX > 43) Your answer should include four decimal places.
Given that z is a standard normal random variable, find the z-score for a situation where the area to the left if z is 0.8907.
Given that z is a standard normal random variable, find the z-score for a situation where the area to the left of z is 0.0901.
Suppose X is a normal random Variable with mean p = 46 and standard deviations 11 (a) Compute the z-value corresponding to X = 30 (1) Suppose the area under the standard normal curve to the left of the value found in part(a) is 0.0729. What is the area under the normal curve to the left of X (c) What is the area under the normal curve to the right of X=30? 307 (Round to two decimal places as needed)
Suppose X is a normal random variable with mean p = 64 and standard deviation o=6. (a) Compute the z-value corresponding to X = 56. (b) Suppose the area under the standard normal curve to the left of the Z-value found in part (a) is 0.0912. What is the area under the normal curve to the left of X= 56? (c) What is the area under the normal curve to the right of X= 56? (a) z= (Round to two...
1. (5 points) Suppose Z is a random variable that follows the standard normal distribution. a) Find P(Z > 0.45). b) Find P(0.7 SZ 1.6). c) Find 20.09. d) Find the Z-score for having area 0.18 to its left under the standard normal curve. e) Find the value of z such that P(-2SZS2) -0.5. 3. (4 points) The scores on a test are normally distributed with a mean of 75 and a standard deviation of 8. a) Find the proportion...