A consumer research company wants to estimate the average cost of an airline ticket for around trip within the continental United States. A random sample of 50 airfares was gatheredgiving an average price of $438. Identify the variable.A. Random sample of 50 airfaresC. Consumer research companyB. Airline FareD. Quantitative E. $38

This variable represents the cost of an airline ticket for a round trip within the continental…

Answered: A consumer research company wants to…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A company wants to determine the frequency of the occurrence of invoice errors. Suppose that in a sample of 100 sales invoices, 10 contain errors. construct a 90% CI for the proportion error.
d. Give a 95% interval estimate of the number of fatal accidents per 1000 licenses in a city where 15% of the licensed drivers are under 21.
You are working with a neighborhood committee to apply for a grant to buy new playground equipment for alocal park. According to the data from the 2010 census, 27 households in the neighborhood have children and 18households do not have children. What is the percentage of families in the neighborhood that have children? Note: This is a part to whole ratio.
You are working with a neighborhood committee to apply for a grant to buy new playground equipment for alocal park. According to the data from the 2010 census, 27 households in the neighborhood have children and 18households do not have children. Which of the following represents the ratio of families without children to families with children? NOTE: this is a part to part ratio.
The speed, in miles per hour, of Mario's serves during tennis practice is shown in the stem-and-leaf plot below. a. What is the range of the speeds, in miles per hour, of Mario's tennis serves? Show or explain how you got your answer. b.What is the mode of the speeds, in miles per hour, of Mario's tennis serves? Show or explain how you got your answer. c.What is the median speed, in miles per hour, of Mario's tennis serves? Show or explain how you got your answer. d. The speed of one additional tennis serve will be added to Mario's stem-and-leaf plot. What is the greatest amount, in miles per hour, the median speed can change? Show or explain how you got your answer.
In ten trips to Las Vegas, a person had the tisted net gains. Find the median net gain $2,359$3,023$4,589$6,056$3,222 $3,466$6,997$8,604$6,336$4,543 OA. $4,589.00 OB. $4,566.00- OC. $4,920.00 O D. $5,467.17
A statistical program is recommended. The Consumer Reports Restaurant Customer Satisfaction Survey is based upon 148,599 visits to full-service restaurant chains.† Assume the following data are representative of the results reported. The variable type indicates whether the restaurant is an Italian restaurant or a seafood/steakhouse. Price indicates the average amount paid per person for dinner and drinks, minus the tip. Score reflects diners' overall satisfaction, with higher values indicating greater overall satisfaction. A score of 80 can be interpreted as very satisfied. (Let x1 represent average meal price, x2 represent type of restaurant, and y represent overall customer satisfaction.) Restaurant Type Price ($) Score Bertucci's Italian 16 77 Black Angus Steakhouse Seafood/Steakhouse 24 79 Bonefish Grill Seafood/Steakhouse 26 85 Bravo! Cucina Italiana Italian 18 84 Buca di Beppo Italian 17 81 Bugaboo Creek Steak House Seafood/Steakhouse 18 77 Carrabba's Italian…
The total sales made by a salesperson was $25,000 after 3 months and $68,000 after 23 months. Predict the total sales after 28 months. O A. $78,750 B. $78,850 O C. $78,720 O D. $78,792
Please help answering this one:
A student's research shows that there were more accidents in 2015 than there were in 1915. He concludes that people were better drivers in 1915 than in 2015.What would be a more appropriate or valid measure for this comparison? A.Compare the number of people who don't have an accident for 1915 and 2015 B.Compare the number of car accidents in those years, grouped by region C. Compare the number of car accidents in 1905 and 2005 D.Compare the accident rates(percentages) for 1915 and 2015
In 2016 the Better Business Bureau settled 84% of complaints they received in the United States. Suppose you have been hired by the Better Business Bureau to investigate the complaints they received this year involving new car dealers. You plan to select a sample of new car dealer complaints to estimate the proportion of complaints the Better Business Bureau is able to settle. Assume the population proportion of complaints settled for new car dealers is 0.84, the same as the overall proportion of complaints settled in 2016. Use the z-table. a. Suppose you select a sample of 200 complaints involving new car dealers. Show the sampling distribution of p. E(p) (to 2 decimals) (to 4 decimals) b. Based upon a sample of 200 complaints, what is the probability that the sample proportion will be within 0.04 of the population proportion (to 4 decimals)? probability : = c. Suppose you select a sample of 460 complaints involving new car dealers. Show the sampling distribution of p. E(F) (to 2…
I can't understand why the data is the percentage of surveyed parents.

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