A sample of 255 adults is selected. The adults are classified according to voter registration status ("registered" or "not registered"). They are also classifiedaccording to preferred source of current events information ("television", "newspapers", "radio", or "internet sites"). The results are given in the contingencytable below.TelevisionNewspapers RadioInternet sitesRegistered25343437Not registered50332121What is the relative frequency of adults in the sample who are not registered to vote and prefer to obtain their information through newspapers?Round your answer to two decimal places.ப5

- Relative frequency is the number of times event happens divided by the total number of events…

Answered: A sample of 255 adults is selected. The…

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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Forty-four fast-food restaurant hourly employees were surveyed to see how many hours they worked per week, on average. The following data was obtained: 30, 30, 44, 34, 35, 40, 34, 39, 33, 40, 31, 37, 30, 37, 35, 33, 32, 41, 51, 31, 37, 34, 33, 36, 39, 41, 37, 39, 37, 38, 37, 34, 28, 39, 31, 33, 30, 38, 34, 39, 44, 43, 31, 42 Construct a 90% confidence interval for the mean number of hours per week that the population of fast- food restaurant employees work. 18 8 R ta Margin of Error: E We are 90% confident that fast-food restaurant hourly employees, on average, work between hours and hours per week.
The Kick Avenue has 5 of the best-selling shoes in Indonesia. Following is the data obtained by Kick Avenue for total sales in the last 1 month. a. In how many different ways can the 4 shoe samples be formed from the data above? b. What is the population mean? c. What is the mean value for the sampling distribution above?
To determine if people's preference in dogs had changed in the recent years, organizers of a local dog show asked people who attended the show to indicate which breed was their favorite. This information was compiled by dog breed and gender of the people who responded. The table summarizes the responses. Female Male Total 73 59 132 49 47 96 Yorkshire Terrier Dachshund Golden Retriever Labrador Dalmatian 58 33 91 37 41 78 45 28 73 86 67 153 Other breeds Total 348 275 623 Does a person's gender appear to be independent of what dog breed they like most? Explain your answer. @ 2 W S X a BIUA-A-LEEE 12pt # 3 e d C C $ 4 r f V % 5 t 9 A 6 b y h & 7 n O u * 8 m O k Paragraph Y ( 9 ✓ O alt 1 ) O P 4 ctrl fr ? 1 D Next } U 1 ( backs
AS2. NO1. DATA ANALYSIS
1. You want to know the number of fans at the Miami Dolphins and Dallas Cowboys game that think the Dolphins will win. You survey 50 fans with season tickets for the Dolphins. a. What is the population of your survey? b. What is the sample of your survey? c. Is the sample biased or unbiased? Explain.
600 students at Drew High School were surveyed. 269 of them were males. 455 of the students' wear jewelry, and 300 of the students that wear jewelry are females.
1 The Blue Tide High School Student Committee has 5 members. They would like to conduct a survey to get the students’ opinion on the school’s new bell schedule. They asked 23 students’ representatives to distribute a questionnaire to the schools’ 1550 students. In the end, they received 750 responses. They wrote a report based on the information provided by the respondents. 2) which number represents the size of the sample?
A sample of 239 adults is selected. The adults are classified according to voter registration status ("registered" or "not registered"). They are also classified according to preferred source of current events information ("television", "newspapers", "radio", or "internet sites"). The results are given in the contingency table below. Television Newspapers Radio Internet sites Registered 46 16 29 36 Not registered 31 20 32 29 What is the relative frequency of adults in the sample who prefer to obtain their information through newspapers? Round your answer to two decimal places.
Find the mode of the following number of countries randomly selected travelers visited in the past two years. 13,13,15,7,8,4,4,7,13
1. Explain the difference between z-tests (which use categorical data), and t-tests (which use numerical data). 2. Conduct a t-test, both when given statistics, and when given data. 3. Conduct a t-test, 2-sample t-test, and paired t-test. 4. Differentiate between the five types of tests we have learned so far.
You are given the following set of observations: 41, 29, 38, 19, 22, 34, 50, 42, 40, 44. What is the value of the IQR?
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