3. Amarket research firm needs to collect data on viewer preferences for local news programming in Rochester. Which method of data collection ismost appropriate?a. Surveyb. Observational StudyC. Censusd. Controlled Experiment

Given that In a marketing research firm needs to collect data on viewer preferences for local news…

Answered: 3. A market research firm needs to…

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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I need help with number 8, 4, and 5. Thank you so much :)
1. To understand the cooking and diet patterns of Americans, a research company surveyed 12,340 American adults (age 18 and older) during the year 2014 and asked about a variety of factors including age, gender, yearly income (in US $), and the number of hours spent cooking each week. Answer the following questions regarding the context of the survey: a. WHO is being measured? (What is the sample?) b. WHAT is being measured? (What are the variables?) For each variable, identify whether it is quantitative or categorical.
Consider the following data. Satisfaction level depended on the speed of execution. A portion of the survey results are as follows: Brokerage Satisfaction Speed Scottrade, Inc. 3.5 3.4 Charles Schwab 3.4 3.3 Fidelity Brokerage Services 3.9 3.4 TD Ameritrade 3.7 3.6 USAA Brokerage Services 2.9 3.22 | Page Vanguard Brokerage Services 2.6 2.6 Wells Fargo Investments 4.0 4.0 i. At the ��= 0.01 level, would you feel comfortable to use the estimated regression equation to relate the speed of execution and satisfaction level? What is your conclusion? (Use p-vale approach) ii. Estimate the 98% confidence interval for speed of execution
The National Association of Home Builders provided data on the cost of the most popular home remodeling projects. Sample data on cost in thousands of dollars for two types of remodeling projects are as follows. Excel File: data 10-41.xlsx Kitchen 25.2 17.4 22.8 21.9 19.7 Master Bedroom 18.0 22.9 26.4 24.8 26.9 Kitchen 23.0 19.7 16.9 21.8 23.6 Master Bedroom 17.8 24.6 21.0 a. Develop a point estimate of the difference between the population mean remodeling costs of kitchens and master bedrooms. (Enter negative values as negative numbers. Report in thousands of dollars with no commas in your answer.) Point estimate = $ thousand b. Develop a 90% confidence interval for the difference between the two population means. (to 1 decimal and enter negative values as negative numbers) ) in thousands of dollars.
Do you think that by choosing the statistical analysis first, and then deciding upon what kind of research plan (i.e., so that the data will suit the analysis) could bias the entire research enterprise?
A statistical program is recommended. Jensen Tire & Auto is in the process of deciding whether to purchase a maintenance contract for its new computer wheel alignment and balancing machine. Managers feel that maintenance expense should be related to usage, and they collected the following information on weekly usage (hours) and annual maintenance expense (in hundreds of dollars). Weekly Usage (hours) Annual Maintenance Expense 13 17.0 10 22.0 20 30.0 28 37.0 32 47.0 17 30.5 24 32.5 31 39.0 40 51.5 38 40.0 (a) Develop the estimated regression equation that could be used to predict the annual maintenance expense (in hundreds of dollars) given the weekly usage (in hours). (Round your numerical values to two decimal places.)
A statistical program is recommended. The data below contains mileage, age, and selling price for a sample of 33 sedans. Price Mileage Age Price Mileage Age Price Mileage Age 16,998 35,000 3 11,599 95,000 8 18,998 20,000 2 17,599 16,000 3 10,499 123,000 8 12,599 63,000 7 15,998 42,000 3 14,599 54,000 5 12,599 70,000 6 15,998 61,000 4 10,599 68,000 11 10,998 88,000 10 11,599 102,000 7 16,998 40,000 4 11,998 86,000 6 13,998 109,000 4 20,998 7,000 1 12,998 60,000 6 14,998 60,000 5 11,599 81,000 9 17,599 45,000 2 11,599 88,000 9 12,599 70,000 9,998 96,000 11 12,599 58,000 8 13,599 86,000 5 9,998 60,000 11 14,998 27,000 6 11,599 92,000 7 16,998 36,000 2 15,998 32,000 4 9,599 120,000 10 17,599 45,000 2 Use the estimated regression equation that predicts the selling price of a used sedan given the mileage and age of the car to answer the following questions. (Let x₁ represent the mileage of the car, x2 represent the age of the car, and y represent the selling price of the car.) ŷ 20385.25…
The fill size for a small bag of peanuts distributed by a popular airline is 50 grams. The producer wishes to set up a set of control charts for this process and collects the data shown in the table. Item #1 Sample 1 54.5 2 50.6 3 51.1 4 52.7 5 51.7 6 51.1 7 54.0 8 53.2 9 51.9 What is the sample size? a. 4 Ob.9 c. 13 d. 45 Item #2 54.3 53.5 54.3 52.1 51.2 51.5 52.3 50.4 50.2 Item #3 53.8 53.2 50.4 51.3 54.7 54.7 54.7 53.4 50.2 Item #4 50.4 54.9 50.7 51.0 54.3 50.4 51.4 51.4 52.9
The city council of Pine Bluffs is considering increasing the number of police in an effort to reduce crime. Before making a final decision, the council asked the chief of police to survey other cities of similar size to determine the relationship between the number of police and the number of crimes reported. The chief gathered the following sample information. City Police Number of Crimes City Police Number of Crimes Oxford 15 19 Holgate 17 10 Starksville 17 16 Carey 11 23 Danville 25 8 Whistler 9 27 Athens 28 10 Woodville 21 10 Click here for the Excel Data Filea. Determine the regression equation. (Negative amounts should be indicated by a minus sign. Round your answers to 4 decimal places.) b. Estimate the number of crimes for a city with 20 police officers. (Round your answer to the nearest whole number.)

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3. A market research firm needs to collect data on viewer preferences for local news programming in Rochester. Which method of data collection is most appropriate? a. Survey b. Observational Study c. Census d. Controlled Experiment