3. The heights of women are normally distributed with mean 63.7 in. and standarddeviation 2.9 in. The US Navy requires that fighter pilots have heights between 62 inand 78 in.(a) Find each percentage of women not meeting with the minimum and maximumheight.(b) Find the percentage of women meeting the height requirement.(c) Are many women being denied the opportunity to join because of their height?(d) What is the maximum height of the shortest 3%?(e) What is the minimum height of the tallest 2%?(n) If the Navy changes the height requirement so that all women are eligible except theshortest 3% and the tallest 2%, what are the new height requirements?(g) Would it be possible for a woman of 57 in to join the Navy with the newrequirement? Give explanation.

Given μ = 63.7δ = 2.9 To find the probability, we need to find the z scores.(a) P(62 < X < 78)…

Answered: 3. The heights of women are normally…

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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The specification limits for a product are 8 cm and 10 cm. A process that produces the product has a mean of 8.5 cm and a standard ?deviation of 0.2 cm. What is the process capability, Cpk .a 1.67 .b 3.33 .C None of them .d 0.83 .e 2.50
The heights of Crepe Myrtle saplings at a local nursery are measured and the data recorded. The data is then plotted and the distribution is found to be bell-shaped. The mean of the set is 67 inches and the standard deviation is 3 inches. A graph of the situation is shown below: 58 61 64 67 70 73 76 a) What percentage of the saplings is more than 70 inches tall? b) What percentage of the saplings is between 61 and 73 inches tall?
To reduce bias, one should a. get a better instrument b. take the average of several measurements c. use rate rather than a count d. unbias your results
A scale is known to be "low-calibrated" in that it measures an aluminum bar to be 4 grams lower than the actual weight. If ????μold is the mean of all possible measurements of the bar using the old calibration, and ????μnew is the mean of all possible measurements of the bar using a re-calibrated scale. It is desired that ????−????=4μnew−μold=4. Consider the test ?0:????−????=4H0:μnew−μold=4 vs. ?0:????−????≠4H0:μnew−μold≠4 Sample after calibration: mean is 95.8 , SD is 4.9 and sample size is 10 Sample before calibration: mean is 89.352 , SD is 4.2 and sample size is 62 We do not know population standard deviations. What is the p-value? (Hint: best to use software, or else the Desmos Calculator for the 2 sample T and Z test)
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The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 61 ounces and a standard deviation of 7 ounces.a) 95% of the widget weights lie between and b) What percentage of the widget weights lie between 54 and 75 ounces? %c) What percentage of the widget weights lie above 40 ? %
Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate for the data below. Years in which U.S. presidents were inaugurated Choose the correct answer below. O A. The nominal level of measurement is most appropriate because the data cannot be ordered. OB. The ratio level of measurement is most appropriate because the data can be ordered, differences (obtained by subtraction) can be found and are meaningful, and there is a natural starting point. OC. The ordinal level of measurement is most appropriate because the data can be ordered, but differences (obtained by subtraction) cannot be found or are meaningless. OD. The interval level of measurement is most appropriate because the data can be ordered, differences can be found and are meaningful, and there is no natural starting zero point. DELL Nex
Please answer Part b,c,d correctly d) Explain in context what your interval means. Select the correct choice below. A. 95% of all bags of tortilla chips will have a mean weight that falls within the interval. B. 95% of the weights of the bags of tortilla chips will be contained in the interval. C. The interval contains the true mean weight of the contents of a bag of tortilla chips 95% of the time D. We are 95% confident that the interval contains the true mean weight of the contents of a bag of tortilla chips
No calculations required. Choose correct answer only.
The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 63 ounces and a standard deviation of 7 ounces. a) 99.7% of the widget weights lie between and b) What percentage of the widget weights lie between 56 and 84 ounces? c) What percentage of the widget weights lie above 49 ? %

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