11. When women were allowed to become pilots, engineers needed to redesign the injection seats sincethey were designed for men. They were designed for men weighing between 140 lb and 211 lb. Weightsof women are normally distributed with a mean of 135 lb, and a standard deviation of 25.6 lb. (For fullcredit need to draw the curve and shade the area)a) If a women is randomly selected, find the probability of her weight is less than 163 lb.b) If 16 women are randomly selected, find the probability of her weight being between 163 lb. and 190lb.

Answered: Image /qna-images/answer/2a234f1a-337c-485e-9bee-bd87bb50f51e.jpg

Answered: 11. When women were allowed to become…

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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Assume that females have pulse rates that are normally distributed with a mean of u = 76.0 beats per minute and a standard deviation of o = 12.5 beats per minute. Complete parts (a) through (c) below. a. If 1 adult female is randomly selected, find the probability that her pulse rate is between 72 beats per minute and 80 beats per minute. The probability isO (Round to four decimal places as needed.) b. If 4 adult females are randomly selected, find the probability that they have pulse rates with a mean between 72 beats per minute and 80 beats per minute. The probability is (Round to four decimal places as needed.) c. Why can the normal distribution be used in part (b), even though the sample size does not exceed 30? O A. Since the mean pulse rate exceeds 30, the distribution of sample means is a normal distribution for any sample size. O B. Since the original population has a normal distribution, the distribution of sample means is a normal distribution for any sample size. O C. Since…
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The two data sets in the table below are dependent random samples. The population of (x - y) differences is approximately normally distributed. A claim is made that the mean difference (x - y) is less than 29.3. X y DII For each part below, enter only a numeric value in the answer box. For example, do not type "z =" or "t=" before your answers. Round each of your answers to 3 places after the decimal point. (a) Calculate the value of the test statistic used in this test. Test statistic's value = -2.760 61 71 58 48 38 41 (b) Use your calculator to find the P-value of this test. P-value $ 4 44 48 66 43 32 30 29 33 (c) Use your calculator to find the critical value(s) used to test this claim at the 0.07 significance level. If there are two critical values, then list them both with a comma between them. Critical value(s) = -1.700 (d) What is the correct conclusion of this hypothesis test at the 0.07 significance level? O There is sufficient evidence to support the claim that the mean…
If systolic blood pressure mesurments, Y, a group of 10,012 young age men are normally distributed with a mean. =120, and standard deviation of =20. A) find the perecentage of men with blood pressure between 115 and 132. B) find the percentage of men with blood pressure between 122 and 140.
Be sure to label your answers with the correct letter. Jenny has earned an 80 on an exam, but isn’t sure how to interpret that score. The mean for her class is μ = 100 and the standard deviation is σ = 10. A) Showing all your work, what is her z-score? B) How would you interpret her z-score? Hint: What specific information does just this z-score tell you, without assuming the data is normally distributed?
Aldo, a highway safety inspector, is concerned about the potential for accidents caused by boulders that fall down a sandstone cliff beside a main highway. As part of an accident simulator, Aldo models the boulders' weights using a normal distribution with a mean of 556 kg and a standard deviation of 100 kg find the percentage of boulders that weigh less than 520kg or more than 592kg according to the model. .
The question is asking for the percentage to the right of x = 20 as this will be the percentage of customers whose service takes longer than 20 minutes. Solve for A) and B)
During the busy season, it is important for the shipping manager at ShipMundo to be able to estimate the time it takes the loading crew to load a truck. The shipping manager has found that she can model the load times using a normal distribution with a mean of 152 minutes and a standard deviation of 15 minutes. Use this table or the ALEKS calculator to find the percentage of load times between 116 minutes and 149 minutes according to the model. For your intermediate computations, use four or more decimal places. Give your final answer to two decimal places (for example 98.23%).
For a certain type of computers, the length of time between charges of the battery is normally distributed with a mean of 50 hours and a standard deviation of 15 hours. Write down the function, draw bell-shaped curve & calculate the: a)Area between 50 and 70 hours. b)Area above 40 hours. c)X value that has 28% area above it. d)X value that has 60% area below it.

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