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 383 tenth graders is drawn. Of the students sampled, 84 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.

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: Given, In the sample of 239 suspected criminals is drawn. Of these people 165 were not captured.…

Q: A group of 100 people, who lived at varying distances (in kilometers) from an island nuclear power…

A: Given that there are 100 people. Therefore, the table becomes,    0-3 km distance 3-6 km distance…

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: Given: Total number of suspected criminals n= 1604 Number of peoples who are not captured = 1011…

Q: The state education commission wants to estimate the fraction of tenth grade students that have…

A: Population is the set of all objects of interest. For statistical studies, the complete population…

Q: 110 students at a college were asked whether they had completed their required English 101 course,…

A: Total students = n = 110,  Number of students completed English 101 course = x = 81.

Q: 110 students at a college were asked whether they had completed their required English 101 course,…

A: It is given that 110 students at a college where 69 students said that they had completed their…

Q: A survey of 78 snowmobilers revealed that 51 of them have driven under the influence of alcohol.…

A: Given data, n=78 x=51

Q: What is the requested percentage?

A: 4.70c) In  this question, we have given Mean=513 S.D=130 To find the percentage for the score less…

Q: 99 students at a college were asked whether they had completed their required English 101 course,…

A: The point estimate of population proportion is sample proportion.

Q: 104 concert-goers at the Glass House in Pomona, California were asked if they know how to play an…

A: Here it is given that- Number of concert goers  = 104 Number of concert goers who can play an…

Q: Use the figure to the right, which shows the percentages of adults from several countries who favor…

A: Given Information: Country A: Sample size n1=1004 Sample proportion p^1=0.53 Country B: Sample size…

Q: 135 students at a college were asked whether they had completed their required English 101 course,…

A: Point estimate: The population parameter which is estimated by using sample statistic is termed as…

Q: In the year 2020, City A had a population of 200,000. 300 existing cases of colon cancer were…

A: GivenThe population of City A =200000The existing cases of Colon Cancer =300The number of cases…

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: Given that Number of sample =306 Number of captured=100 We have to find the proportion of people who…

Q: In a sample of 508 men who worked at home, 32% of them were college graduates. a.) Among the 508 men…

A:

Q: The owner of a local bar specializing in alternative music wanted to determine the average age of…

A: t 95% confidence level, the z value is 1.96 which can be obtained by using the standard normal…

Q: 110 students at a college were asked whether they had completed their required English 101 course,…

A:

Q: What percentage of scores would be above 567?

A:

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: Assume that p is the true population proportion of people who were caught after being on the 10 Most…

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: Sample Size: The formula for the sample size is as follows: Here, zα/2 is the critical value at 99%…

Q: A researcher wishes to estimate the proportion of corporate executives whose annual salary is over…

A:

Q: a nutritionist wishes to determine, within 3% the true proportion of adults who do not eat lunch. if…

A:

Q: a sample of ore is found to be 0.0012% diamond and 0.033% copper. What is the percentage of matter…

A: Given:- A sample of ore is found to be 0.0012% diamond and 0.033% copper To find:- The percentage of…

Q: Fetal autopsies 3 Autopsies: Pediatric pts 1 Autopsies: Emergency room pts 12 Autopsies: cancer pts…

A: Introduction: Fetal autopsy rate is the rate at which fetal deaths result in autopsies, and the…

Q: An environmentalist wants to find out the fraction of oil tankers that have spills each month. Part…

A: Solution: a. Let X be the number of oil tankers that had spills and n be the number of tankers. From…

Q: c. Answer part (b) for a sample of 580 (to 4 decimals). -0.888:

A:

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: The proportion of people who were caught after being on the 10 most wanted is obtained below:The…

Q: A state legislator wishes to survey residents of her district to see what proportion of the…

A: Answer:-  Given, Margin of error=7%=0.07 Confidence level=0.90 Let P=0.5 ( as we don't have sample…

Q: What is the approximate percentage of students who scored between 29 and 71 on the test? Round to…

A:

Q: An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step…

A:

Q: What is the percentage of area below z= -1.51? Round to nearest tenth as needed

A: The z-score value is -1.51.

Q: A pharmaceutical researcher wants to determine the proportion of people who believes that branded…

A: For the given data n = ?

Q: who appear on the list that are actually caught. Step 1 of 2: Suppose a sample of 233 suspected…

A: Favorable Cases XX = 7272 Sample Size NN = 233233 The proportion of people who were caught…

Q: CT 977 There were approximately 28 million adults in Canada when this survey was conducted. Give an…

A: We have given that Sample size = 1008. Value of X =28. Margine of error=3.1%. We need 95 %…

Q: The American Heart Association is about to conduct an anti-smoking campaign and wants to know the…

A:

Q: The state education commission wants to estimate the fraction of tenth-grade students that have…

A: Solution

Q: For a survey based on 1,900 adults, what is the conservative margin of error as a proportion? (Round…

A: MOE

Q: a) What proportion of the sampled wafers had (P 2 8)? b) What proportion of the sampled wafers had…

A: 5. a) The frequency is, Number of Particles Cumulative frequency Frequency Number of Particles…

Q: 86 students at a college were asked whether they had completed their required English 101 course,…

A: Point Estimate of Population proportion (P) = p^ = xn

Q: 133 students at a college were asked whether they had completed their required English 101 course,…

A: Given, The objective is to find the best point estimate for the proportion of students at the…

Q: You are interested in conducting a study to determine the proportion of Thunder Bay high school…

A:

Q: With no preliminary estimate of the proportion known, how many young adults would you survey to…

A: It is given that margin of error (E) is 0.10 and the confidence level is 0.99.

Q: (d) What percentage of GMAT scores are between 447 and 747?

A: We have to find out given probabiity..

Q: 114 students at a college were asked whether they had completed their required English 101 course,…

A: From the provided information, the total students of collage (n) = 114The number of students who…

Q: An environmentalist wants to find out the fraction of oil tankers that have spills each month.…

A: Givensample size = 563 tankers number of ships did not have spills = 445  number of ships have…

Q: You would like to be 99.9 confident that your estimate is within 2% of the true population…

A:

Q: The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to…

A: Introduction :-  Using the data, we have to estimate the proportion of people who were caught after…

Q: On a recent Washington to London flight with 300 passengers, it was found that 100 passengers were…

A:

Q: Suppose a sample of 369 tankers is drawn. Of these ships, 310 did not have spills. Using the data,…

A: Let X be the number of oil tankers that had spills and n be the number of tankers. From the given…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.