As a part of a class project, a teacher brings a jar of 200 jawbreakers of three different colors, orange, red and white. Students must estimate the number of white jawbreakers in the jar. Suppose that after the jar is shaken well, one student draws 30 jawbreakers from the jar, of w

Q: A survey of 350 people shows that 210 people have seen a movie in the last month. Find the sample…

A: The sample proportion (p̂) is calculated by dividing the number of people who have seen a movie in…

Q: What percent of the department faculty have 15 or more years of service? swer: ماما % If a member of…

A: The histogram gives the length of service of members of the Department of Biology at a particular…

Q: n a class of 25pupil's their are 8individual who played in the hockey team.what percentage of class…

A: Given : Total no. of individual in a class (N) = 25 No. of individual who played in the hockey team…

Q: Find the 1rst quartile and 3rd quartile of the following numbers  41,43,46,47,48,50,51,52,53,54,55

A: The given numbers already in the increasing order: 41,43,46,47,48,50,51,52,53,54,55 Median = middle…

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

A: The question is about proportion.Given :Randomly selected no. of tankers ( n ) = 432No. of tankers…

Q: . If the medical faculty has 584 students registered, calculate how many medical students would be…

A: Given data in the problem is  University of the East Europe is interested in the overall performance…

Q: there are 347 people that take a survey and assume that 112 of them are women. what percentage of…

A: The percentage of females in the survey is calculated below:

Q: You want to know what percentage of students own pets at your university. In asking 10 random…

A: In an observational study, researcher observes the individuals and measure the outcomes. In this…

Q: n Internet poll asked 4272 U.S. adults about their use of smart watches and fitness trackers. A…

A: Given:

Q: Mrs. Feleo samples her class by selecting every ninth person on her class list. Which type of…

A: Mrs. Feleo samples her class by selecting every ninth person on her class list

Q: Suppose a sample of 158158 tankers is drawn. Of these ships, 135135 did not have spills. Using the…

A: It is given that, among 158 tankers 135 did not have spills.

Q: About 2% of the population has a particular genetic mutation. 600 people are randomly selecte Find…

A: Given data,p=2%=0.02n=600Mean=?

Q: Nationally, 83% of Americans have earned a high school diploma.  We want to see if the proportion of…

A: We have to find sample proportion.

Q: The percentage of girls who like pink in a school is 57%. Which proportion separates the lowest 10%…

A: The percentage of girls who like pink in a school is 57%.p = proportion = 57/100 = 0.57 The sampling…

Q: In a class with 25 student there are 6 student very talentet in the subject of art. What percentage…

A:

Q: Write the Sample space, outcome or event of the ff: 1. A couple has 4 children. If 2 of their…

A: The total outcomes of couple has 4 children is, Therefore, the total no.of outcomes are, 16

Q: A vaccine to prevent a severe virus was given to children within the first year of life as part of a…

A: a. The sample percentage of children who caught the virus in the vaccine group is,…

Q: A consumer group surveyed 146 airplane travelers after a flight and found that 132 of them would fly…

A:

Q: Select the best response. Paired sample t-test focuses on data in the: A. first score in the pair…

A: In paired t test, means of two related groups are compared.

Q: Here are the fuel efficiencies (in mpg) of 8 new cars. 45, 20, 45, 14, 34, 22, 18, 28 What is the…

A: Given information- We have given the data of the fuel efficiencies of 8 new cars (arranged in…

Q: Identify the population and sample. In a random sample of Salinas residents, 137 said they would…

A: Population: The population in a statistical study is the entire group of individuals about which we…

Q: A survey of 150 people revealed that 115 people like ketchup on their hot dogs, 85 people like…

A: Concept of General Addition Rule: For any two events A and B the General Addition Rule state that:

Q: Suppose you wanted to know the proportion of students who wear glasses on campus and you went ahead…

A: you wanted to know the proportion of students who wear glasses on campus  you went ahead and survey…

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: Of the 328 patients that completed the survey last year, 211 of them claimed to be returning…

A: Given: 328 patients completed the survey 211 patients returning

Q: A school principal surveys 4 freshman, 4 sophomores, 4 juniors, and 4 seniors. For the situation…

A: We have to find correct answer for given data....

Q: Martha Quinn is interested in the proportion of fast to slow songs she will play today.  She takes…

A: In this method of selection, each song have equal probability of getting selected and the selection…

Q: 25% of pitchers are left-handed. a survey of 80 pitchers showed 27 are left-handed. find the point…

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

Q: Take a random sample of 50 pages from a book and estimate the proportion of all pages that contain…

A: Here we want to find proportion of pages that contain figures.

Q: Find the vAriance of the sample data: 191, 215, 76, 262, 93, 163, 162, 268

A: Measure of dispersion measures the spread of the data. Standard deviation indicates how much the…

Q: If a coin is flipped 150 times and the number of Hs is 25. Compute the proportion of Hs. Round to…

A: We have given that,  Favorable cases (X) = 25 and sample size (n) = 150 Then,  We will find the…

Q: of 118 new enrollees in a college nursing program 68 are planning on pursuing a 4 year degree 32 a…

A:

Q: Determine whether the sample is biased or unbiased

A: Given a situation, we need to find whether it is biased or unbiased.

Q: You survey 100 people and find that 75 of them would prefer to work at home to some extent. When…

A: Given: You survey 100 people and find that 75 of them would prefer to work at home to some extent.…

Q: A quality-conscious disk manufacturer wishes to knoww the fraction of disks his company makes which…

A: Given, The no. of sample, n =5431 The number of defective, x = 4943

Q: The pie chart shows the responses of a sample of 336 small business owners who were asked whether…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: The 10 members of the swim team completed the following numbers of laps at today's practice. 77, 78,…

A: Given: n = 10 Formula Used: Q1 = n+14thterm Q3 = 3n+14thterm

Q: An opaque jar contains 300 marbles, all either green or purple. Calista pulls out 10 marbles without…

A: # Given: no of marble in jar N=300  Sample of size n=10 drawn  No of purple marble in sample =2…

Q: When 450 junior college students were surveyed, 125 said that they have previously owned a…

A: sample size(n)=450 No. of students said that they have previously owned a motorcycle(x)=125

Q: Type in the space below the sampling method described by the statement . Sample every tenth customer…

A: Systematic sampling: It a probability sampling method. In this method, samples are called in a…

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.