Question 183 pts
In a normal distribution, what percentage of sample observations fall between the mean and .71 standard deviations above or below the mean?
1.96%
76.11%
26.11%
13.6%
Percentage of sample observations fall between the mean and .71 standard deviations above or below the mean
= P(0 < z < 0.71)
= 0.2611
= 26.11%
Option C is correct.
Question 183 pts In a normal distribution, what percentage of sample observations fall between the mean...
Find the proportion of observations of a standard normal distribution that are between the mean and 3.23 standard deviations above the mean. Click here to view page 1 of the table. Click here to view page 2 of the table. % of observations are between the mean and 3.23 standard deviations above the mean. (Round to two decimal places as needed.)
Question 3 1 pts Under the normal curve, approximately what percent of scores fall between and -1 to +1 standard deviations around the mean? 14% O 34% 68% 0 95% Question 7 1 pts If a distribution has a mean of 50 and a standard deviation of 5, what value would be -1 standard deviations from the mean? O O O O
Assuming a normal distribution, what percentage of measurements will fall within the range of the mean ± 2 σ, where refers to the population standard deviation?
14. TRUE or FALSE? If X is any normal distribution, then about 95% of all observations from X will fall within two standard deviations of the mean. 15. TRUE or FALSE? The normal quantile value 0-1(0.025) = -1.96. 16. TRUE or FALSE? If X ~ Nor(u, o?), then Pr(-1 < X-< 1) = 0.6826.
For a standard normal distribution, find the percentage of data that are within 1.5 standard deviations from the mean. Group of answer choices Question 1 0.11 pts For a standard normal distribution, find the percentage of data that are within 1.5 standard deviations from the mean. 43.32% 86.64% 93.32% 6.68%
What percent of scores in a normal distribution will fall between the mean and -1 standard deviation?
find the probability that the sample mean of 16 observations from a standard normal distribution population, (normal distribution with u=0 and sigma=1), will be between -0.1 and 0.1
Question 4 10 pts Percentage of scores falling between z's of 50 and 1.25. Question 5 10 pts Percentage of scores falling between z's of -53 and +84 Question 6 10 pts On a normal distribution with a mean of 200 and a standard deviation of 50, what percentage of cases will fall between a raw score of 185 and 195?
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%
Use Table E, in the appendix, for the following questions 1. What percentage of observations from a standard normal distribution are below a z-value of -2.15? 2. What percentage of observations freom a standard normal distribution are above a z value of -2.15? 3. What percentage of observations from a standard normal distribution are above a z value of 2.15? are between -2.15 and 2.15? 4. What percent of observations from a standard normal distribution sed on your answers to...