Suppose your manager indicates that for a normally distributed
data set you are analyzing, your company wants data points between
z=−1.4 and z=1.4 standard deviations of the mean (or within 1.4
standard deviations of the mean). What percent of the data points
will fall in that range?
Answer: percent (Enter a number between 0 and 100, not 0
and 1 and round to 2 decimal places)
Suppose your manager indicates that for a normally distributed data set you are analyzing, your company...
Suppose your manager indicates that for a normally distributed data set you are analyzing, your company wants data points between z=−1.4z=-1.4 and z=1.4z=1.4 standard deviations of the mean (or within 1.4 standard deviations of the mean). What percent of the data points will fall in that range?
Suppose a normally distributed set of data has a mean of 172 and a standard deviation of 15. Use the 68-95-99.7 rule to determine the percent of scores in the data set expected to be between the scores 142 and 187. Give your answer in decimal form and keep all decimal places throughout your calculations and in your final answer.
(2 points) Suppose we have a normally-distributed population that has a mean of 65 and a standard deviation of 5. 5. (a) What percent of observations will fall in the interval from 55 to 75? (Hint: Find out how many standard deviations the range spans on both sides of the mean and use the 68/95/99.5 rule) (b) What percent of observations will fall in the interval from 60 to 70?
Question 2 Suppose you are working with a data set that is normally distributed, with a mean of 250 and a standard deviation of 46. Determine the value of x from the following information. (Round your answers and z values to 2 decimal places.) (a) 90% of the values are greater than x. (b) x is less than 18% of the values. (c) 25% of the values are less than x. (d) x is greater than 55% of the values.
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?
(CO 1) In a normally distributed data set of how long customers stay in your store, the mean is 44.8 minutes and the standard deviation is 2.6 minutes. Within what range would you expect 95% of your customers to stay in your store?
In a normally distributed data set of how long customers stay in your store, the mean is 44.8 minutes and the standard deviation is 2.6 minutes. Within what range would you expect 95% of your customers to stay in your store? a2.6-44.8 b37.0-52.6 c42.2-47.4 d39.6-50.0
(CO 1) In a normally distributed data set of how long customers stay in your store, the mean is 50.3 minutes and the standard deviation is 3.6 minutes. Within what range would you expect 95% of your customers to stay in your store 39.5-61.1 46.7-53.9 43.1-57.5 48.5-52.1
Question 11 For any normally distributed data: (Write the answers without % sign) A: About what percent of data is within 1 standard deviation of the mean? B: About what percent of data is within the mean and 2 standard deviations above the mean? C: About what percent of data is more than 2 standard deviations above the mean? Question 12 The scores on a test by a large class are normally distributed. The mean score is 72 with a...
For normally distributed data, what is the probability that a data point wil fall within one standard deviation of the mean? (i) 50% (ii) 68% 0 (iii) 95% (iv) 99.7% s save Submt Assignment For normally distributed data, what is the probability that a data point will fall within one standard deviation of the mean? 0 (i) 50% @ (u) 68% 0 (m) 95% (w) 99.7% Subme Assignment Quit& Save 6