Question 9
Answer is 0.0668
Question 10
Answer is 0.2119
uwpks.instructure.com Question 9 4 pts What proportion of a normal distribution is located above z =...
What proportion of a normal distribution is located between each of the following Z-score boundaries? a. z= -0.50 and z= +0.50 b. z=-0.90 and z= +0.90 c. z=-1.50 and z= 1.50 For a normal distribution with a mean of μ = 80 and a standard deviation of σ= 20, find the proportion of the population corresponding to each of the following. a. Scores greater than 85. b. Scores less than 100. c. Scores between 70 and 90. IQ test scores are standardized to produce a normal distribution with...
What proportion of a normal distribution is located between z = 0 and z = +1.50?
Question 13 For a normal distribution, the proportion located between z = –1.00 and z = 0 is 95% 50% 68.12% 34.13%
6. Area under the normal distribution The following figure shows the normal distribution with the proportion of the area under the normal curve contained within one, two, and three standard deviations of the mean. The last proportion on each side, 0.13%, depicts the remaining area under the curve. Specifically, 0.13% of the area under the standard normal distribution is located above z-score values greater than the mean (u) plus three standard deviations (+30). Also, because the normal distribution is symmetrical,...
Question 10 6 pts In a normal distribution, what is the approximate probability (as a percentage) of randomly selecting a value with a z-score less than z = +1.65? In other words, what percentage of scores fall below az score of 2.5% 95.0% 5.0% 97.5%
. For this set of questions, determine what proportion of a normal distribution is located betweeneach of the following z score boundaries? In your answer, include all 4 decimals places listed in the table. Find the proportion between z = –0.45 and z = +0.45
Question 9 1 pts The scores on Quiz 2 follows the normal distribution with a mean of 8 and a standard deviation of 0.5. What is the probability that a randomly selected student has a score between 8 and 10? 0.95 0.96 ..50 0.99
For any normal distribution, the proportion located between the mean and z = 1.40 is 0.9192. TRUE. or FALSE ???
Find the proportion of the normal distribution that is located between the following z-values. (Round your answers to four decimal places.) (a) Between z = 0.50 and z = −0.50. (b) Between z = 1.00 and z = −1.00. (c) Between z = 0 and z = −1.50. (d) Between z = 1.75 and z = −0.25.
2 pts Find the proportion of observations from a standard normal distribution curve that satisfies z-score: -0.1<z< 1.0 Round numerical value to the second decimal place. (Hint: use cumulative standard normal distribution z-table) O 0.62 O 0.38 0.32 O 0.25 O 0.48 0.44 Not enough information to answer the question None of the given numerical values is correct