窗口帮助5.png20三文件♨ 手型 awE****___!!! [ 33,390首页 <文字文●B06 5选择 PDF WordK332PDF转图片1/6> >V95A开始YP***本地备份开插入P255.15%2D D DQ 旋转文档1+1批注NJ***O HOBBSAMSUNGPTechnical School Sample (Questions 1-2)Suppose a local technical school has several departments that teach a variety oftrades (electrical, carpentry, HVAC, plumbing, auto repair, etc.).Suppose five auto repair classes are randomly selected and all of the students fromeach class are taken into a sample.1. What type of sampling was used?2. What population could this sample be used to represent (if we assume that itis random)?I-0.5C Q school Sample AV :... X<1/6| 单页页·台连续阅读背景,划词翻译DDtv0.00.5+zoom 30也分享^.255 %O XW截屏10ГлKJ全屏显示 |KY2 zoom9ator Drug Use (Questions 3-4)A study showed that 53% of parents of college students have used Marijuana. Thestudy also showed that 59% of college students whose parents used Marijuanahave used Marijuana, while 60% of students whose parents did not use Marijuanastayed away from the drug.3. What is the probability that a randomly selected student and the student'sparents have used Marijuana?4. What is the probability that the parents of a randomly selected student haveused Marijuana if the student has not?

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Answered: Technical School Sample (Questions 1-2)…

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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A coach is interested in how many slam dunks the average college freshman at his university can do. Ten volunteers from the senior class step forward. After observing their performance, the coach concluded that college seniors can do an average of 10 slam dunks in a row without missing. what is the sample? what is the population?
Please check picture and answer with detail explaination.
Week 10. Question 6 In a research report, suppose a researcher states that they ‘randomly’ stopped passers-by in a shopping centre to get responses for their survey. Explain why this process is not truly random.
Question 6 I am stuck between cluster and stratified for the answer. Need help with this problem. Identify which of these types of sampling is used: random, stratified, systematic, cluster, convenience. A market researcher selects 500 drivers under 30 years of age and 500 drivers over 30 years of age. Question 6 options: Cluster Stratified Convenience Systematic Simple Random
Which of the following sampling methods was used in the study described below? A researcher is interested in knowing how many hours a week teenagers spend on social media. He surveys his daughter, who is a teenager, and fifty of her teen friends. a. simple random sample b. systematic sample c. convenience sample d. self-selected sample
8. The local florist serves 24 schools. The owner wants to interview a sample of 4 principals in detail to find ways to improve services to his/her clients. To avoid bias, the owner chooses a simple random sample size 4. Briefly explain how you could choose a simple random sample. Give an example.
A group of students at a local university were asked about their status (undergraduate, graduate, or non-degree seeking) and how they get to campus (walk/bike or car/bus/etc.). The results are summarized in the table below. How do you get to Campus? Walk/Bike Car/Bus/etc. Total Undergraduate 80 20 100 Graduate 40 10 50 Non-degree Seeking 10 40 50 Total 130 70 200 Suppose we choose a person at random from this sample. Which of the following statements is true? (A) If the person uses a car/bus/etc. to get to campus, then he or she is more likely to be a non- degree seeking student than a degree seeking student (undergraduate or graduate). (B) If the person is an undergraduate, then he or she is more likely to use a car/bus/etc. to get to campus than to walk/bike to campus. (C) The person is more likely be a graduate student if he or she uses a car/bus/etc. to get to campus than if he or she walks/bikes to campus. (D) The person is more likely to use a car/bus/etc. to get to campus than…
Which of the following are sources of sampling error and which are sources of nonsampling error? The subject cannot be contacted in five calls. The telephone directory is used as a sampling frame. Data are gathered by asking people to go to a website and answer questions online. A typing error is made in recording the data. The subject lies about past illegal drug use. Interviewers choose people on the street to interview.
A community college employs 8787 full-time faculty members. To gain the faculty's opinions about an upcoming building project, the college president wishes to obtain a simple random sample that will consist of 99 faculty members. He numbers the faculty from 1 to 8787. Complete parts (a) and (b) below. LOADING... Click the icon to view the random number table. Question content area bottom Part 1 (a) Using the provided random number table, the president closes his eyes and drops his ink pen on the table. It points to the digit in row 3, column 6. Using this position as the starting point and proceeding downward, determine the numbers for the 99 faculty members who will be included in the sample. The numbers for the faculty members are enter your response here.
One cable company advertises that it has excellent customer service. In fact, the company advertises that a technician will be there within 30 minutes of when a service call is placed. One frustrated customer believes this is not the truth, claiming that it takes over 30 minutes for the cable repairman to arrive. The customer asks 15 of his neighbors how long it has taken for the cable repairman to arrive when they have called for him. The sample mean for this group is 32.2 minutes with a sample standard deviation of 3.6 minutes. Test the customer’s claim at the 0.02 level of significance. (a) State the null and alternative hypotheses (b) Find the value of your test statistic. Draw a picture and label its location on the normal curve. Also shade the area where you will find the p-value. (c) Calculate the p-value from the sample data. Compare it to the significance level. Label it’s value and location on your bell curve (d) Write a full…
Question 4 Coach Smith wants to know whether students would pay for the privilege of parking their cars in the lot closest to the school. He surveyed students getting on the buses while he monitored bus loading each afternoon. What type of sampling technique is this? Your answer: O Simple random sampling O Stratified random sampling O Systematic sampling Cluster sampling Convenience sampling O o o O O
please answer the question in the attached picture with work shown, thanks! #3 A,B

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