(c) A city manager wants to poll residents about a park renovation. Which of the following best describes a stratified sample of residents?The city manager forms 2 groups of residents based on the residents' incomes. Then, she selects 25 residents at random from each group.The city manager forms groups of 10 residents based on the streets the residents live on. Then, she selects all of the residents in 5 randomlychosen groups.The first 50 residents who walk into city hall one day are easily accessible. So, the city manager selects these residents.ExplanationCheck2021 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center | Accessibilia7:45 PM|耳Type here to search9/21/202110insern144&backsp7.EY.00L.%24 (a) A chemist at a pharmaceutical company wants to test the quality of a new batch of microscopes. Which of the following best describes a systematicsample of microscopes?The chemist assigns each microscope a different number. Using a random number table, he draws 72 of those numbers at random. Then, heselects the microscopes assigned to the drawn numbers. Every set of 72 microscopes is equally likely to be drawn using the random numbertable.The chemist forms 6 groups of microscopes based on the prices of the microscopes. Then, he selects 12 microscopes at random from eachgroup.The chemist takes a list of the microscopes and selects every 3 microscope until 72 microscopes are selected.3rd(An(b) A host on a cruise ship wants to collect data on the time passengers spend at various activities on board. Which of the following best describes aconvenience sample of passengers?The host takes a list of the passengers and selects every 4thpassenger until 80 passengers are selected.The host assigns each passenger a different number. Using a random number table, he draws 80 of those numbers at random. Then, he selectsthe passengers assigned to the drawn numbers. Every set of 80 passengers is equally likely to be drawn using the random number table.The host selects the first 80 passengers who board because these passengers are easily accessible.%3DExplanationCheck2021 McGraw Hill LLC All Rights Reserved.Terms of Use Privacy Center Accessibility7:45 PM9/21/2021耳Type here to searchnsert144JLpacksoace&7.8.3.41Y.U5.%24

Solution; When the population is not homogeneous, the entire population is divided into several…

Answered: (c) A city manager wants to poll…

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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For a school project, 3 students need to produce a sample of students at their school. Which of the following methods leads to a random sample? a Asking each of their friends to a a name 3 friends. b Writing all the names of students they know on a list and picking. c Numbering all the students at the school and produce a sample from a random list of numbers. d Calling for volunteers on social media.
There is a board game in which players are given the opportunity to solve a murder that has six suspects, seven possible weapons, and seven possible rooms where the murder may have occurred. The six suspects are Professor Plum, Mrs. White, Mrs. Peacock, Mrs. Yellow, Mr. Johnson, and Miss Clancy. Determine a sample space for the choice of murderer. Discuss how to form a sample space with the entire solution to the murder, giving murderer, weapon, and site. Complete parts (a) through (c) below. Choose the correct sample space for the choice of murderer below. OA. {0} O B. {Professor Plum, Mrs. White, Mrs. Peacock} O C. {Professor Plum} ⒸD. {Professor Plum, Mrs. White, Mrs. Peacock, Mrs. Yellow, Mr. Johnson, Miss Clancy} (a) Discuss how to form a sample space with the entire solution to the murder, giving murderer, weapon, and site. How many outcomes would the sample space for the entire solution have? Select the correct choice below and fill in the answer box to complete your choice.…
The city of Raleigh has 7,900 registered voters. There are two candidates for city council in an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 550 randomly selected registered voters was conducted. 270 said they'd vote for Brown, 266 said they'd vote for Feliz, and 14 were undecided.Give the sample statistic for the proportion of voters surveyed who said they'd vote for Brown. Round your answer to four decimal places. ------------ This sample statistic suggests that we might expect ----------- of the 7,900 registered voters to vote for Brown.
If two people are asked to list their choices of favorite household pet from among dog (d), cat (c), and ferret (f), list the sample space showing the possible outcomes. Choose the correct answer below. O A. (d, d), (c, c), (f, f) O B. (d, c), (d, f), (c, d), (c, f), (f, d), (f, c) OC. (d), (c), (1) O D. (d, d), (d, c), (d, f), (c, d), (c, c), (c, f), (f, d), (f, c), (f, f)
4) You know that 70 percent of the subs at theme parks in the US are yellow. There are 220 subs in theme parks in the US. You are in a contest where you select sub names from a hat and record the name of the theme park sub. (No replacement ). You win a prize if you select a greater percentage of yellow subs than 90% of your many many competitors. What percentage of yellow subs do you need to select?
Find the 55th percentile
ToysGalore is researching customers’ opinions about prices on their new doll. Name each sampling method. . A representative stands at the store entrance and polls the first 75 customers b. A representative asks every 8th customer who enters the store
I AM RESUBMITTING THIS QUESTION FOR DIFFERENT PARTS. I NEED THE LAST 3 MULTIPLE CHOICE QUESTIONS ANSWERED. 5, 6, AND 7 Before the furniture store began its ad campaign, it averaged 160 customers per day. The manager is investigating if the average has changed since the ad came out. The data for the 16 randomly selected days since the ad campaign began is shown below: 131, 127, 148, 143, 141, 153, 158, 145, 138, 163, 164, 148, 166, 154, 170, 133 Assuming that the distribution is normal, what can be concluded at the αα = 0.05 level of significance? For this study, we should use Select an answer t-test for a population mean z-test for a population proportion The null and alternative hypotheses would be: H0:H0: ? μ p Select an answer < = ≠ > H1:H1: ? p μ Select an answer = > ≠ < The test statistic ? t z = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.) The p-value is ? ≤ > αα Based…
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A political campaign wants to estimate the number of adult residents who voted in the last city election. Answer the following. (a) Which of the following surveys probably would best represent the entire adult population of the city? 50 senior residents are randomly selected; 42 voted in the last election. 50 adult residents are randomly selected from the city; 25 voted in the last election. 50 business owners are randomly selected; 38 voted in the last election. (b) There are 16,800 adults who live in the city. Using your answer from part (a), estimate the number of adults who voted in the last city election. adults

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