1. A researcher wants to study the effects of social media on Grade 11 students in Manila Mathematics High School. He wishes to use the simple random sampling technique in choosing the members of his sample. If there are 1000 Grade 11 students in the school, how many students should there be in his sample? Discuss the steps he must take if he wishes to use lottery method

Q: A Mathematics teacher has 20 movie tickets. He is planning to distribute those tickets to his class…

A: Given No. of tickets with teacher = 20 No. of students in class = 50 students

Q: The subject of your study are the members of Pantawid Pamilyang Pilipino Program (4Ps) in the…

A: Stratified sampling: It is a sampling method in which the entire population is divided into…

Q: Please show your solutions and if possible, kindly take a picture on it so that I can see the answer…

A: Note: " Since you have asked multiple questions, we will solve the first question for you. If you…

Q: The city of Raleigh has 6800 registered voters. There are two candidates for city council in an…

A: Given : telephone poll of 500 randomly selected registered voters was conducted. 208 said they'd…

Q: A recent graduate chooses 4 continents to visit from the 7 in the world. What is the size of the…

A: A recent graduate chooses 4 continents to visit from the 7 in the world total=7 choose =4

Q: You want to interview 200 students in your school to determine their opinion on the new school…

A:

Q: The librarian surveys every 7th student from an alphabetized list to determine reading preferences…

A: Here, we know that in the Systematic random sampling, we fix the order of the samples. In other…

Q: Caitlyn has to determine how many of the 120 employees in her work place has comprehensive car…

A: Stratified sampling: In a stratified sample, researchers divide a population into homogeneous…

Q: entering your work cafeteria and are approached by an individual to participate in their study by…

A: Given that  You are entering your work cafeteria and are approached by an individual to participate…

Q: When a researcher who is studying "serious tennis players" asks 200 people if they qualify as this…

A: In the following problem Convenience Sampling is to be used

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: A political scientist surveys 74 of the current 205 representatives in a state's congress. Of them,…

A: A Population is the entire group that you want to draw conclusions about. A sample is the specific…

Q: As part of the SPC Reads initiative, Prof. Rosengarten needs to find out what the 10 most popular…

A: Stratified sampling: If the population is divided into differnt strat's and then randomly selected…

Q: What sampling technique was used?

A: here use definition of sampling method

Q: A graduate student wants to know which campus dining option undergraduate students prefer across the…

A: Here, the graduate student randomly selected 10 students from each residence hall across the…

Q: Identify what type of random or nonrandom sampling technique is used. Minority of senators are to…

A: Given that minority of senators are to be interviewed. So this implies that a group/type of senators…

Q: The city of Raleigh has 7200 registered voters. There are two candidates for city council in an…

A: It is given that, a day before the election, a telephone poll of 200 randomly selected registered…

Q: 2. A big company donated a total of 1,000 packs of school supplies to be given to the students in…

A:

Q: A Mayor’s Candidate’s political campaign would like to determine the popularity of their candidate…

A: It is one of the non-probability sampling techniques in which the selection of the sample units is…

Q: Why did they take my favorite show off the air?" The answer lies, no doubt, in low Nielsen ratings.…

A: As per our guidelines, we are allowed to answer first three sub-parts only. Thanks   Given : Of the…

Q: After a Sampling Plan is developed- what are the steps in sampling?

A: Sampling: In statistical analysis, the sampling is defined as selection of subjects from the…

Q: Prof. Badalian wants to know the ages of moviegoers who go to see Star Wars. If he survey everyone,…

A: Systematic sampling can be defined as selecting the sample from  the large population according to…

Q: She divides her constituency into three income classes: low-income households, middle- households,…

A: 4. In stratified sampling, the population is divided in such a way that it is homogeneous within the…

Q: In conducting a statistical study about the number of hours full-time students work at Miramar…

A:

Q: 6 percent nonconforming 12 percent of the time. use acceptance numbers of 1,2 and 4. from a…

A: In the pursuit of devising effective single sampling plans to identify and reject lots containing 6…

Q: A statistics lecturer wanted to determine if the time spent studying affected a student's GPA She…

A: Correct Answer: b. Simple Random SamplingReason: The lecturer collected data from 300 randomly…

Q: A political campaign wants to estimate the number of adult residents who voted in the last city…

A: Detailed explanation:(a)  We must take into account which survey sample is the most representative…

Q: Pippa is interested in understanding how many hours per week teenagers in her town spend watching…

A:

Q: A political scientist surveys 70 of the current 127 representatives in a state's congress. Of them,…

A: Given that a political scientist 70 of the current 127 representative in state's congrese.  And of…

Q: In the Star and Tribune newspaper, there is an article entitled “1 in 8 school buses fail tests."…

A: Given information: Sample of 200 buses and find that 20 buses fail the safety inspection. Let us…

Q: You want to determine how many senior citizens in nursing homes suffer from chronic diseases. First,…

A: Given: Suppose you wish to know how many elderly people in nursing homes have chronic conditions.…

Q: A researcher wants to study the effects of social media on Grade 11 Mathematics High School. He…

A: Note: " Since you have asked multiple questions, we will solve the first question for you. If you…

Q: A worker wanted to estimate the average annual living expenses for the residents of New Zealand. He…

A: Simple random sampling: Simple random sampling is defined as a method of sampling in which, a sample…

Q: how do you find the simple random sample of 15 restaurants?

A: In simple random sampling each member of the population has an equal chance of being included in the…

Q: a) The University of the East Europe is interested in the overall performance of its students in the…

A: Please see Below the answer

Q: explain correlation. How is it calculated and what does it tell us about data gathered during a…

A: Correlation: Correlation is a statistical term describing the degree to which two variables…

Q: If we took three different samples of college students (one from California, one from Arizona, and…

A: The samples are derived of 500 students from three cities, city C, city AR and city AL.

Q: You want to obtain a survey from households across the U.S. To obtain the survey you separate the…

A: You want to obtain a survey from households across the U.S. To obtain the survey you separate the…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.