What Z-scores correspond to separating middle 60% of the normal distribution from the rest of the distribution?
middle 60% of score is
P(-z < Z < z) = 0.60
P(Z < z) - P(Z < -z) = 0.60
2 P(Z < z) - 1 = 0.60
2 P(Z < z) = 1 + 0.60 = 1.60
P(Z < z) =1.60 / 2 = 0.8
P(Z <0.84 ) = 0.8
z ± 0.84 ( using standard normal table)
What Z-scores correspond to separating middle 60% of the normal distribution from the rest of the...
The z scores that bound the middle 60% under the standard normal curve are z=-a and z=a. Find the value of a.
Find the Z-scores that separate the middle 86% of the distribution from the area in the tails of the standard normal distribution. Click the icon to view a table of areas under the normal curve. The Z-scores are _______
Find the z-scores that separate the middle 17% of the distribution from the area in the tails of the standard normal distribution. The z-scores are「 (Use a comma to separate answers as needed. Round to two decimal places as needed.)
for a normal distribution: a. what z-score separates the highest 40% from the rest of the scores b. what z-score separates the lowest 15% from the rest of the scores
Find the Z-scores that separate the middle 53% of the distribution from the area in the tails of the standard normal distribution Click the icon to view a table of areas under the normal curve The Z-scores are (Use a comma to separato answers as needed. Round to two decimal places as needed)
Find the two standard scores Z-scores such that the middle 90% of a normal distribution is bounded by them. 0 - 1.735 and 1.735 0 -1.435 and 1.435 0 - 1.645 and 1.645 0 -1.245 and 1.245
Find the Z-scores that separate the middle 59% of the distribution from the area in the tails of the standard normal distribution.The Z-scores are _______ (Use a comma to separate answers as needed. Round to two decimal places as needed)
Find the z-scores that bound the middle 15% of the standard normal distribution (give anser to 2 decimal places) Smaller value - Larger value -
In a normal distribution N(0,1), what are the two z-scores that will be the lower and upper boundaries for the middle 90 percent of the distribution? Choose the listed values that are the closest to your calculated value! - 1.96 and + 1.96 - 1.96 and + 1.65 - 2.58 and + 2.58 - 2.00 and + 2.58 - 1.65 and + 1.65 - 2.00 and + 2.00
the z-scores that bound the middle 41% under the standard normal curve are z=-a and z=a. find the value of a