39. Let's eat: A fast-food restaurant chain has 600 outlets in the United States. The followingtable categorizes them by city population size and location and presents the number ofrestaurants in each category. A restaurant is to be chosen at random from the 600 to testmarket a new menu.AnswerPopulationof cityUnder 50,00050,000-500,000Over 500,000a. Given that the restaurant is located in a city with a population over 500,000, what is theprobability that it is in the Northeast?AnswerRegionNESE SW NW30 3551560 90 70 30150 25 30 60b. Given that the restaurant is located in the Southeast, what is the probability that it is ina city with a population under 50,000?

Here the given table is Using formula, Conditional probability,

Answered: 39. Let's eat: A fast-food restaurant…

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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2. The Department of Fish and Wildlife looked at the ages of individuals between 65 and 81 that frequented the Bolsa Chica Reserve during the week of June 13th, 2021, to help determine if more facilities and resources are necessary to support the needs of that age group. They determined there were 40 individual visitors that fit those criteria, with the following ages: 65, 66, 66, 67, 67, 67, 68, 68, 68, 68, 69, 69, 69, 69, 69, 69, 70, 70, 70, 70, 70, 71, 71, 71, 71, 72, 72, 72, 73, 73, 73, 74, 74, 75, 75, 76, 77, 78, 79, and 80. Age (years) Number of Visitors 65 1 66 2 67 3 68 4 69 6 70 5 71 4 72 3 73 3 74 2 75 2 76 1 77 1 78 1 79 1 80 1 81+ 0 What would you say is the best measure of central tendency for the weekly visitor distribution? How should the Department of Fish and Wildlife report it? Justify your response.
On the following pages you are presented with five problems. Your job is to examine the output and discuss whether there is a statistically significant relationship between the two variables, the pattern or direction of the relationship if the relationship is significant, and the strength of the relationship if the relationship is significant. AS you discuss the strength of the relationship, you will rely on an appropriate measure of association from those that have been given. For that determination, you will need to appropriately determine the level of measurement of each of the variables being examined. Please use the Measures of Association Chart I provided to help you with your determination. You may write your responses on a separate document or next to the problems on this one.
26. A survey conducted by the Bureau of Labor Statistics found that 67% of high school graduating class of 2007 went on to college the following year, while 44% of the class was working. Furthermore, 92% were either in college or working, or both. a. What percentage went on to college and work at the same time? b. What percentage went on to college but not work? c. What percentage were neither in college nor work?
1. Suppose we want to sample a neighborhood for a community needs assessment. The neighborhood has 7 subdivisions and 3 of the 7 are to be collected for household sampling. How many different ways can we select these households? ·
15. FILE The management of Discount Furniture, a chaln of discount furniture stores In the Northeast, designed an Incentlve plan for salespeople. To evaluate this inno- vative plan, 12 salespeople were selected at random, and their weekly incomes before and after the plan were recorded. Salesperson Before After Sld Mahone Carol Qulck Tom Jackson $320 $340 290 285 421 475 Andy Jones Jean Sloan 510 510 210 210 Jack Walker 402 500 Peg Mancuso Anita Loma 625 560 360 431 631 560 John Cuso Carl Utz A. S. Kushner Fern Lawton 365 431 506 525 505 619 Scanned with CamScanner TWO-SAMPLE TESTS OF HYPOTHESIS 325 Was there a significant increase in the typical salesperson's weekly income due to the innovative incentive plan? Use the .05 significance level. Estimate the p-value, and interpret it.
18. A poll was taken of 14,056 working adults aged 40-70 to determine their level of education. The participants were classified by sex and by level of education. The results were as follows. Male Female Total Education Level High School or Less Bachelor's Degree 3141 2434 5575 3619 3761 7380 472 Master's Degree 534 52 43 7346 6710 14,056 1006 95 Ph.D. Total A person is selected at random. Compute the following probabilities: (d) The probability that the selected person is male, given he has a Master's degree (e) The probability that the selected person does not have a Master's degree, given it is a male (f) The probability that the selected person is female, given that she has a Bachelor's degree (g) The probability that the selected person has a Ph.D, given it is a female
3. The director of library services at Fairmont College did a survey of types of books (by subject) in the circulation library. Then she used library records to take a random sample of 4217 books checked out last term and classified the books in the sample by subject. The results are shown below. Subject Area % Books in Circ Library on this Subject No. of Books in the Sample on this Subject Business 32% 1210 Humanities 25% 956 Natural Science 20% 940 Social Science 15% 814 Other Subject 8% 297 Using a 5% level of significance, test the claim that the subject distribution of books in the library fits the distribution of books checked out by students.
4. A school has 600 pupils. The number in each year group is shown below: 7 Year 8 9 10 11 Number of pupils 114 132 120 126 108 Stratified sample A stratified sample of 100 pupils is to be taken, related to how they travel to school. How many pupils from each year group should be tested?
1. is the collection of all elements under consideration in a statistical inquiry. A. Statistics C. Population B. Sample D. Data
92 cities were surveyed to determine sports teams. 25 had soccer, 23 had rugby, 17 had volleyball, 14 had soccer and rugby, 10 had soccer and volleyball, 11 had rugby and volleyball. 6 had all three. Let A = soccer, B= rugby, C= volleyball. How many had only a rugby team? A I IV II V VII III VI C B VIII
1. A researcher is interested in the texting habits of high schools students in the United States. The researcher selects a group of 200 students, measures the number of text messages that each individual sends each day (for a single week), and calculates the average number for the group. a. Identify the population for the study. b. Identify the sample for this study. c. The average number calculated is an example of what?

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