A magazine provided results from a poll of 1500 adults who were asked to identify their favorite pie. Among the 1500 respondents, 12% chose chocolate pie, and the margin of error was given as +5 percentage points. Describe what is meant by the statement that "the margin of error was given as +5 percentage points." Choose the correct answer below. O A. The statement indicates that the interval 12% +5% is likely to contain the true population percentage of people that prefer chocolate pie. O B. The statement indicates that the study is only 5% confident that the true population percentage of people that prefer chocolate pie is exactly 12%. OC. The statement indicates that the true population percentage of people that prefer chocolate pie is in the interval 12% ±5%. O D. The statement indicates that the study is 100% - 5% = 95% confident that the true population percentage of people that prefer chocolate pie is 12%.

A magazine provided results from a poll of 1500 adults who were asked to identify their favorite pie. Among the 1500 respondents, 12% chose chocolate pie, and the margin of error was given as +5 percentage points. Describe what is meant by the statement that "the margin of error was given as +5 percentage points." Choose the correct answer below. O A. The statement indicates that the interval 12% +5% is likely to contain the true population percentage of people that prefer chocolate pie. O B. The statement indicates that the study is only 5% confident that the true population percentage of people that prefer chocolate pie is exactly 12%. OC. The statement indicates that the true population percentage of people that prefer chocolate pie is in the interval 12% ±5%. O D. The statement indicates that the study is 100% - 5% = 95% confident that the true population percentage of people that prefer chocolate pie is 12%.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

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…
A software company is interested in improving customer satisfaction rate from the 51% currently claimed. The company sponsored a survey of 157 customers and found that 89 customers were satisfied.
Suppose that the results of a survey show that 53% of people consider summer as their favorite season. How many people should be surveyed in order to have a margin of error of 6%? Round up to the nearest whole number, if necessary. In order to have a margin of error of 6%, people should be surveyed.
I can't understand why the data is the percentage of surveyed parents.
Anna teaches a small class of 14 students. She recently gave them an exam (out of 100 points). The scores on the exam were: 0, 15, 58, 75, 78, 82, 84, 84, 89, 91, 94, 98, 100, and 100. How many of the scores are potential outliers? a. 1 b. 0 c. 3 d. 2 e. Impossible to Determine
The state education commission wants to estimate the fraction of tenth-grade students that have reading skills at or below the eighth-grade level. Step 1 of 2 : Suppose a sample of 1134 tenth graders is drawn. Of the students sampled, 226 read at or below the eighth-grade level. Using the data, estimate the proportion of tenth graders reading at or below the eighth-grade level. Enter your answer as a fraction or a decimal number rounded to three decimal places.
In some 4.0 grading systems, a student's grade point aversge (GPA) is calculated by assigning letter grades the following numerical values. (See attachment) Use this grading system to find this student's GPA. Round to the nearest hundredth. Tessa's cumulative GPA for 3 semesters was 3.18 for 46 course units. Her fourth semester GPA was 3.72 for 12 course units. What is Tessa's cumulative GPA for all 4 semesters?
A consumer research company wants to estimate the average cost of an airline ticket for a round trip within the continental United States. A random sample of 50 airfares was gathered giving an average price of $438. Identify the variable. A. Random sample of 50 airfares C. Consumer research company B. Airline Fare D. Quantitative E. $38
Suppose that the result of a public opinion poll shows that just 10% of people would be willing to give up their cell phones for 1 week in exchange for $100. How many people would need to be surveyed in order to have a margin of error of ±2%?
As part of a sixth-grade class project the teacher brings to class a jar containing 200 gumballs of two different colors: red and green. Andy is asked to draw a sample of his own choosing and estimate the number of red gumballs in the jar. Andy draws a sample of 25 gumballs, of which 8 are red and 17 are green. Use Andy's sample to estimate the number of red gumballs in the jar. There are approximately Answer red gumballs in the jar.
An automotive manufacturer wants to know the proportion of new car buyers who prefer foreign cars over domestic. Step 1 of 2 : Suppose a sample of 1217 new car buyers is drawn. Of those sampled, 267 preferred foreign over domestic cars. Using the data, estimate the proportion of new car buyers who prefer foreign cars. Enter your answer as a fraction or a decimal number rounded to three decimal places.
For letter B please plug in the number 6