QUESTION 3It is known that 14.5% of adult men in the United States are 6 ft tall or taller. Assume that the heights of adult men in the United States are independent of each other.Suppose a researcher will keep sampling adult men in the U.S. until he gets 10 men that are 6 ft tall or taller. What is the expected number of men the researcher must sample?OA. 38.96OB. 48.96O C. 58.96O D. 68.96

Let X be the number of men sampled untill the researcher get 10 men that are 6 feet tall or taller…

Answered: It is known that 14.5% of adult men in…

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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Answer questions number 6,7,8
Listed to the right are the selling prices (in thousands of dollars) for a sample of 19 lakeside lots in Pinnacle Peak, a vacation home community in the Blue Ridge mountains. 86 61 148 81 39 142 140 65 28 85 90 92 25 50 85 85 82 120 137 Determine the following: a. the first quartile b. the third quartile c. the median
As practiced by many in buying skirts or pants, they use the neckline to check if the waistline of the skirts or pants fits them. We would like to study this claim by using a random sample of neckline and waistline of 15 people. The data collected are summarized as follows: Subject 1 2 3 4 5 6 7 8 9 10 11 12 14 15 13 Neckline 35 34 38 45 38 33 38 42 44 33 35 31 33 35 30 (cm) Waistline(cm) 83 97 100 86 82 77 82 91 62 93 57 67 93 57 3-4. The regression equation is: Waistline' = - 3.9964 2.30321 neckline 5. Using the regression equation/model for waistline in Number 3-4, estimate the waistline if the neckline of a person is 37 cm. Round off final answer to two decimal places. 6-8. Solve for the coefficient of determination, r2 (Express the answer in percentage form, r2 x 100%; Round off final answers to two decimal places): E(y/ – 9)² = E(y – 9)² = 9. Solve for the coefficient of nondetermination (Express the answer in percentage form; Round off final answer to two decimal places):
Consider the data from the Anthropology 105 class. The mean for women is 64.33 in and the standard deviation is 2.64 in. The average height of men in the US is approximately 5ft 10in. What proportion of women represented here are shorter than the average man?
According to a Boston Globe story, only about 1 in 6 Americans have blue eyes, whereas in 1900 about half had blue eyes. (Source: Data from The Boston Globe on October 17, 2006.) a. For a random sample of 100 living Americans, find the mean and standard deviation of the proportion that have blue eyes. b. In a course you are taking with 100 students, half of the students have blue eyes. Would this have been a surprising result if the sample were a random sample of Americans? Answer by finding how many standard deviations that sample result falls from the mean of the sampling distribution of the proportion of 100 students who have blue eyes. c. In part b, identify the population distribution, the data distribution, and the sampling distribution of the sample proportion.
The histogram (click the attacthed photo to view) shows the distribution of hurricanes that have hit a country from 1851 through 2015, where 1 is the weakest level and 5 is the strongest level. A) The mean is? B) The variance is? C)The standard deviation is?
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Find the population mean or sample mean as indicated. Population: 6, 9, 3, 12, 14, 16 O A. x=11 OB. x= 12 O C. µ= 13 ΟD. μ= 10
O SPS Programs 5 n Uhllne LBCker. Vitu E Unuied document . G RII- GOogle search spanish In this problem, assume that the distribution of differences is approximately normal. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smaller. In some situations, this cholce of d.f. may Increase the Pvalue by a small amount and therefore produce a slightly more "conservative" answer. At five weather stations on Trail Ridge Road in Rocky Mountain National Park, the peak wind gusts (in miles per hour) for January and Aprl are recorded below Weather Station 1 2 3 4 S 139 124 104 January 64 78 April 88 61 102 Does this Information Indicate that the peak wind gusts are higher in January than in April? Use a = 0.01. (Let d= January- April.) (a) what is the level of significance? State the null and alternate hypotheses. will you use a left-taled, noht-tailed, or two-talled test? O H H- 0, H H 0; nght-taled O Ho: He- 0; H, H-0; two-tafled O Hg: Ha> 0; H, Ha- 0;…
If the standard error for a sample of size 50 is ?=135.21s then the standard error for the mean ?s which of the following: 2.70 135.21 19.12 67.36
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