Which of the following is most likely to be a random sample?O A. Five Statistics classes at Generic College are selected and each personin those classes is surveyedO B. Bill uses a computer to randomly generate numbers to choose which senators to whom he will send a letterOC Every fifth patron at a movie theater is searched for weaponsO D. Every student at a high school is surveyed

Population is the set of all objects of interest. Sample is a subset of the population. It is not…

Answered: Which of the following is most likely…

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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ASAP
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.
Please show all of them a,b,c,d, and e
These questions are together
Which of the following is an example of judgment sampling? A. The Texas House of Representatives has 85 Republicans and 65 Democrats. To estimate how the representatives will vote on a certain bill, 17 randomly choosen Republican members and 13 randomly choosen Demmocratic members are interviewed on their opinions. B. To gather the opinions on a certain fashion line, a magazine interviews other respected fashion designers. C. To inspect the quality of goods from a production line, every 50th item produced is tested. D. An airport wants to measure customer satisfaction. The researcher only approaches travelers who are waiting at a gate or browsing a airport shop.
Assume that 1100 births are randomly selected and 553 of the births are girls. Use subjective judgment to describe the number of girls as significantly high, significantly low, or neither significantly low nor significantly high. Choose the correct answer below. O A. The number of girls is significantly high. O B. The number of girls is significantly low. O C. The number of girls is neither significantly low nor significantly high. O D. It is impossible to make a judgment with the given information.
Twelve HSS students have been randomly assigned to one of three different statistics classes: one is taught by Professor Lavigne, another is taught by a monkey, and the last group has no professor and requires that students learn on their own. Here are the data: Final grade in class: Prof Lavigne: 67,74,82,55 Monkey: 43,66,52,10 No professor: 97,87,86,78 We now want to figure out if the average final grade in each class is different from one another. What kind of analysis does this require? One-way ANOVA A series of two-sample t-tests A series of one-sample t-tests None of the above What degrees of freedom are needed to answer the following question: Are average final grades statistically different in each group? 10 11 2 and 9 3 and 12 No degrees of freedom can be used
There are five sales associates at Mid-Motors Ford. The five associates and the number of cars they sold last week are: Sales Associate Cars Sold Peter Hankish Connie Stallter Juan Lopez 4 Ted Barnes 10 Peggy Chu a. How many different samples of size 2 are possible without replacement? Samples of size b. Compute the mean of each sample. Cars sold Sample mean 8,6 8,4 8,10 8,6 6,4 6,10 6,6 4,10 4,6 10,6 c. Compute the mean of the sampling distribution of sample mean and population mean. (Round your answers to 1 decimal place.) Mean the distribution of the sample means Population mean
A manufacturing plant knows that in reality 80% of products made are perfect. An inspector selects four products at random. What is the mean number of perfect products in any sample of 4? It can be assumed that each product is independent of the others.
A study was conducted to determine how people get jobs. The table list date from 400 randomly selected subjects. The data are bases on results from the National centter for Career Strategies. Job source of survey respondent FREQUENCIES HELP-WANTED ads 56 EXECUTIVE SEARCH FIRMS 44 NETWORKING 280 MASS MAILING 20 TOTAL 1. What percentage of the respondents got job by either help-wanted ads or mass mailing? 2. What percentage of the respondent got jobs from networking?

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