A variable is normally distributed with mean 15 and standard deviation 3.a. Determine the quartiles of the variable.b. Obtain and interpret the 85th percentile.c. Find the value that 65% of all possible values of the variable exceed.d. Find the two values that divide the area under the corresponding normal curve into a middle area of 0.95 and two outside areas of 0.025. Interpret the answer.[Links to standard normal distribution tables]Click here to view page 1 of the standard normal distribution table.Click here to view page 2 of the standard normal distribution table.

Let be a normal variable with as 15 and as 3.X ~ Normal(15, 9).

Answered: A variable is normally distributed with…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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f. Third Quartileh. Sixty-Fifth Percentile
12. It is the square of the population standard deviation. Answer: 13. It is the sum of all population data divided by the number of population data. Answer: 14. It depicts the number of pieces of independent information available for computing variability.
A variable is normally distributed with mean 0 and standard deviation 4. a. Determine and interpret the quartiles of the variable. b. Obtain and interpret the second decile. c. Find the value that 15% of all possible values of the variable exceed. d. Find the two values that divide the area under the corresponding normal curve into a middle area of 0.80 and two outside areas of 0.10. Interpret your answer.
A variable is normally distributed with mean 11 and standard deviation 2. a. Find the percentage of all possible values of the variable that lie between 7 and 14. b. Find the percentage of all possible values of the variable that exceed 9. c. Find the percentage of all possible values of the variable that are less than 10. Click here to view page 1 of the standard normal table. Click here to view page 2 of the standard normal table. a. The percentage of all possible values of the variable that lie between 7 and 14 is %. (Round to two decimal places as needed.) b. The percentage of all possible values of the variable that exceed 9 is %. (Round to two decimal places as needed.) c. The percentage of all possible values of the variable that are less than 10 is %. (Round to two decimal places as needed.)
Identify the data value corresponding to the indicated percentile. The amount of sleep an adult gets per day is normally distributed with a mean of 7 hours and a standard deviation of 1.5 hours. Five percent of adults sleep more than how many hours per day?
Please answer the question on the attachment.
At least 99.61% of the data in any data set lie within how many standard deviations of the mean? Explain how you arrived at your answer. Explain how the number of standard deviations could be found for any data set. Choose the correct answer below. O A. Use Chebychev's Theorem. O B. Use the Empirical Rule. O C. Use the Coefficient of Variation. Find the number of standard deviations. k = E (Round to the nearest integer as needed.)
A variable is normally distributed with mean 11 and standard deviation 2. Next question a. Find the percentage of all possible values of the variable that lie between 7 and 16. b. Find the percentage of all possible values of the variable that exceed 6. c. Find the percentage of all possible values of the variable that are less than 9. Click here to view page 1 of the standard normal table. Click here to view page 2 of the standard normal table. a. The percentage of all possible values of the variable that lie between 7 and 16 is (Round to two decimal places as needed.) %. b. The percentage of all possible values of the variable that exceed 6 is (Round to two decimal places as needed.) %. c. The percentage of all possible values of the variable that are less than 9 is (Round to two decimal places as needed.) %.
To determine if their 13 oz filling machine is properly adjusted, Smith Paints has decided to use an X-Chart which uses the range to estimate the variability in the sample. J. Step 1 of 7: What is the Center Line of the control chart? Round your answer to three decimal places. Period 1 2 day Select the Copy Table button to copy all values. To select an entire row or column, either click on the row or column header or use the Shift and arrow keys. To find the average of the selected cells, select the Average Values button. Copy Table Average Values The average of the selected cell(s) is 12.970. Copy Value 3 4 5 6 7 Table Control Chart 8 9 10 11 obs5 obs6 Sample Mean Sample Range 13.02 13.0050 12.97 12.98 13.04 13.04 13.01 13.01 13.03 12.95 12.96 13.05 12.98 12.9967 obs1 obs2 obs3 obs4 13.01 13.01 12.98 13.05 13.02 12.98 12.99 12.97 12.9983 12.98 13.01 13.02 12.96 13.03 13.04 13.0067 13.04 13.04 13.02 13.03 13.02 13.04 13.0317 12.99 12.96 13.03 12.95 12.97 13.05 12.9917 12.98 12.96 12.99…
select the letter of the correct answer in the Choices. Questions: 1. What is the mean? Choices: A. 65 B. 75 C. 85 D. 95 2. What is the standard deviation? Choices: A. 10 B. 5 C. 15 D. 20 3. What is the area of the shaded region? Choices: A. 0.9972 B. 0.9525 C. 0.9544 D. 0.0228
About locating percentile under the normal curve. Direction: Solve the following.
Determine whether the given value is from a discrete or continuous data set. An impact SUV has a gas tank that can hold 15.21 gal.

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