6 men and 4 women are ranked according to their scores on an exam. Assume that no two scores are alike, and that all 10!1 indicates that apossible rankings are equally likely. Let X denote the highest ranking achieved by a woman (so Xwoman achieved the highest score on the exam). Find each of the following:P(X = 1) =0.6P(X = 3) =0.2667P(X = 4) =P(X = 10) =|3D

Answered: Image /qna-images/answer/e8acc7ea-59d0-494d-b73e-082d2746864e.jpg

Answered: 6 men and 4 women are ranked according…

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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Suppose that fund-raisers at a university call recent graduates to request donations for campus outreach programs. They report the following information for last year's graduates. Size of donation Proportion of calls 0.40 $0 0.30 0.25 Three attempts were made to contact each graduate. A donation of $0 was recorded both for those who were contacted but declined to make a donation and for those who were not reached in three attempts. Consider the variable x = amount of donation for a person selected at random from the population of last year's graduates of this university. (a) Write a few sentences describing what donation amounts you would expect to see if the value of x was observed for each of 1,000 graduates. to donate $25, and roughly $10 $25 $50 (c) What is P(x ≥ 25)? You would expect roughly of the graduates to donate nothing, roughly frequencies would be close to, but not exactly, these values. The four frequencies would add to (d) What is P(x > 0)? 0.05 (b) What is the most…
If P(x) = x +x+4, find P(8). P(8) =
Joan Nguyen recently claimed that the proportion of college-aged males with at least one pierced ear is as high as the proportion of college- aged females. She conducted a survey in her classes. Out of 112 males, 19 had at least one pierced ear. Out of 98 females, 46 had at least one pierced ear. Do you believe that the proportion of males with at least one pierced ear is different from the proportion of females with at least one pierced ear? (Use a = 0.05.) NOTE: If you are using a Student's t-distribution for the problem, including for paired data, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.) Part (a) Part (b) Part (c) Part (d) State the distribution to use for the test. (Round your answers to four decimal places.) Pm-P-? O Part (e) What is the test statistic? (If using the z distribution round your answer to two decimal places, and if using the distribution round your answer to three decimal…
A population of scores with p = 38 and CT = 6 is standardized to create a new population with p = 50 and CT =10. What is the new value for each of the following scores from the original population? original score X = 26 X = 35 X = 44 X = 47
Jerry is considering opening a new ice cream store at a certain location on State Street in Madison. Jerry conducts some analysis and determines that a given location is acceptable only if the number of pedestrians passing the potential location averages more than 100 per hour. To check if this location is acceptable, Jerry records the number of pedestrians observed for each of 40 hours. Jerry finds that the average number of pedestrians that pass the potential location during each of the 40 hours he was observing, is 105.7 per hour. Jerry assumes that he knows the population standard deviation to be 16. Can Jerry conclude at the 1% significance level that the potential location for the ice cream store is acceptable? a. What is the correct set of hypotheses? Answer: Ho: u = 100 and H1: u> 100 v b. Determine the p-value Answer: 0.0122 c. Interpret the results Answer: There is not enough evidence d. Jerry is concerned with committing a Type II error. Determine the probability of Type II…
R2
Given the data points (2, 29.5), (5, 523), (7, 1807), and (11, 9853), find the value of f(x) if x = 4.48 using quadratic interpolation. Round off your final answer to five decimal places but do not round off in preliminary calculations. THE CORRECT ANSWER: 314.30320
A magazine collected the ratings for food, decor, service and the cost per person for a sample of 104 restaurants. They combined the ratings to create a summated rating and used that to predict the cost of a restaurant meal. The data are modeled by Yi=−28.781+1.0138Xi, where Xi is the summated ratings and Yi is meal cost. For these data, SYX=8.246, X=61.63, and hi=0.026171 when X=53 A. Construct a 95% confidence interval estimate of the mean cost of a meal for restaurants that have a summated rating of 53. B. Construct a 95% prediction interval of the cost of a meal for an individual restaurant that has a summated rating of 53.
Assume there are 3500 undergraduate students studying at AUA, 1800 students have taken Business Math (denote with BM), 1500 students have taken Environmental Science (denote with ES), and 1400 AUA students have taken both Environmental Science and Business Math. Select one answer. Select one: a. P(ES or BM)= 0.543, P(ES' and BM)= 0.11 b. P(ES or BM)= 0.942, P(ES' and BM)= 0.51 c. P(ES or BM)= 0.543, P(ES' and BM)= 0.51 d. P(ES or BM)= 0.943, P(ES' and BM)= 0.11

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