A survey found that men's heights are normally distributed with mean 68.4 in. and standard deviation 3.88 in. How tall does a doorway height need to be to allow 90% of men to fit without bending?The doorway height that would allow 90% of men to fit without bending is ☐ in.(Round to one decimal place as needed.)

The doorway height that would allow 90% of men to fit without bending is approximately 73.4…

Answered: A survey found that men's heights are…

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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A variable is normally distributed with mean 17 and standard deviation 8. Use your graphing calculator to find each of the following areas. Write your answers in decimal form. Round to the nearest thousandth as needed. a) Find the area to the left of 16. b) Find the area to the left of 13. c) Find the area to the right of 15. d) Find the area to the right of 19. e) Find the area between 13 and 28.
Which statement below is correct? a. Standard deviation should be used when calculating z for a single score, while standard error should be used when calculating z for a sample mean. b. When calculating z for a single score or for a sample mean, the standard error should be used. c. Standard error should be used when calculating z for a single score, while standard deviation should be used when calculating z for a sample mean. d. When calculating z for a single score or for a sample mean, the standard deviation should be used.
A variable is normally distributed with mean 15 and standard deviation 3. Use your graphing calculator to find each of the following areas. Write your answers in decimal form. Round to the nearest thousandth as needed. a) Find the area to the left of 14. b) Find the area to the left of 12. c) Find the area to the right of 13. d) Find the area to the right of 16. e) Find the area between 12 and 25. Question Help: D Post to forum Calculator Submit Question
Analyze the following data. Assume the true value of L (the length of a table) is 93.40cm. L(cm) 93.2 93.3 93.9 92.8 93.5 93.4 92.9 a) What are the mean and standard deviation of this data sample? b) What is the uncertainty of the mean? c) Report the measured value of L. d) What is the relative discrepancy between the measured value of L and its true value? Suppose you have a second set of data for the same quantity that gives the following result: L = (93.90 ± 0.02) cm. e) Is this value more or less precise than the first value? f) Is this value more or less accurate than the first value? g) Do the two values agree given their uncertainties? h) What is the relative discrepancy between the two values?
Diastolic blood pressures are assumed to follow a normal distribution with a mean of 85 and a standard deviation of 12. What proportion of people has diastolic blood pressures less than 80? A)0.661 B)0.338 C)0.50 D)0.75
. In a county male height is normally distributed with a mean of 177 cm and astandard deviation of 6 cm. What percentage of males have a height between 170cm and 182 cm.
A variable is normally distributed with mean 17 and standard deviation 6. Write your answers in decimal form. Round to the nearest thousandth as needed.a) Find the area to the left of 18. b) Find the area to the left of 13. c) Find the area to the right of 17. d) Find the area to the right of 20. e) Find the area between 13 and 21.
In an Oreo factory, the mean mass of a cookie is given as 40 g. For quality control, thestandard deviation is 2 g.a) If 10 000 cookies were produced, how many cookies are within 2 g of the mean? b)Cookies are rejected if they weigh more than 44 g or less than 36 g. How many cookies would you expect to be rejected in a sample of 10 000 cookies
Based on data from the 2010 Census the average age of a Pierce County, Washington resident is 41 years with a standard deviation of 12.3 . The data is normally distributed. The median age, in years, is: a) 41 b) 38 c) 43 d) 33
Find the standard deviation for the given data. The data represents the age (in years) at which 10 individuals first traveled by plane. Round your answer to one more decimal place than the original data.15, 42, 53, 7, 9, 12, 14, 28, 47A) 29.1 years B) 16.6 years C) 17.8 years D) 15.8 years

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