Matt E. Matic was applying for a job. To determine whether he could handle the job, the personnel manager sent him out to poll 100 people about their favorite types of TV shows. His data were as follows. 58 preferred comedies. 42 preferred variety shows. 45 preferred serious drama. 16 preferred comedies and variety programs. 15 preferred variety and serious drama. 18 preferred comedies and serious drama. 8 preferred all types. 5 did not like any of these TV show types. how many people did matt ask?

Q: Felicia is conducting a survey to determine the determine the favorite TV show among her community.…

A: Stratified sampling: In stratified sampling the whole population is divided into two or more…

Q: You take a sample of the heights (in inches) of 12 professional basketball players. The data are:…

A: Given data: 79, 76, 77, 79, 81, 83, 79, 76, 78, 83, 87, 85.

Q: The Human resource team is surveying employee satisfaction. Among the stores it has around the…

A: cluster sampling and how the human resource team's approach to surveying employee satisfaction using…

Q: Kala has two ways to travel from her home in Norco to her office in Los Angeles. One is to go via…

A: There are two independent samples which are 10 Freeway and 60 Freeway. We have to test whether the…

Q: There were 150 students that were asked about their favorite animal.  23 students chose hamsters, 48…

A: Total students = 150 No. of students who chose hamsters as their favorite animal = 23 No. of…

Q: 00 subjects were studied and 120 of them expressed a preference for brand x, what percentage…

A: The 200 subjects were studied; n=200 120 of them expressed a preference for brand x; x=120

Q: Of the 300 visitors polled,O liked to ski or snowboard. (Type a whole number.)

A:

Q: a. Complete the​ two-way table summarizing the reviews.

A:

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: After the premiere of the new comedy Bumblebee, moviegoers were asked in a quick poll whether they…

A: No. of adults = 50 No of the adults liked the film = 35

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: 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: The school librarian wants to determine how many students use the library on a regular basis.  What…

A: Here we want to know sampling type.

Q: If 200 subjects were studied and 120 of them expressed a preference for Brand X, what percentage…

A: The total number of subjects is 200.

Q: The table below shows how many employees owned 0, 1, 2, or 3 cars in a company made up of 15…

A:

Q: vho visit the mall to find out their level of satisfaction with the mall's service. Write a three…

A: Three basic principles for the design of a sample survey are:1. Principle of OptimizationThe…

Q: Maci is a social networking maniac! Although she prefers Instagram, she also spends a lot of time…

A: Introduction A variable is a no., characteristic which can be counted or measured.

Q: You did a survey of students on campus to see if they used the light rail or not. 41 student said…

A: percentage problem

Q: Ms. Scott, the principal of Phoenix High School, was conducting a survey about student's impressions…

A: Cluster sampling: Cluster sampling is defined as a method of sampling in which, at first, the entire…

Q: You know that 70 percent of the subs at theme parks in the US are yellow.  There are 220 subs in…

A: Solution Given that  We have total sub parks in the US = 220 we know , 70% of them are yellow = 154

Q: For the survey method to be valid, a representative sample of peoplemust be polled. T or F?

A: The survey methodology essentially involves the study of individuals (or a specified group of finite…

Q: Students in a small statistics class were asked which was their dominant hand and if they were in a…

A: Given,   Right Left Total STEM, Yes 6 1 7 STEM, No 7…

Q: After the premiere of the new comedy Bumblebee, moviegoers were asked in a quick poll whether they…

A: From given data, Number of adults who disliked the movie=20-14=6 Percentage of adults who disliked…

Q: the records at a veterinary clinic show that out of the 3412 animals registered at the clinic,  1712…

A:

Q: As a part of a class project, a teacher brings a jar of 200 jawbreakers of three different colors,…

A: Given that one student draws 30 jawbreakers from the jar, of which 9 are orange, 11 are red and 10…

Q: College students were surveyed to check what they favored between basketball, football or baseball.…

A: Tabulation is used to consolidate the larger data in tabular form. It used to understand the data…

Q: Matt E. Matic was applying for a job. To determine whether he could handle the job, the personnel…

A:

Q: A survey was conducted by a website on which online music channels subscribers use on a regular…

A: 11 listened to rap, heavy metal, and alternative rock. 18 listened to rap and heavy metal. 20…

Q: A survey conducted by a song rating service finds that the percentages of listeners familiar with…

A: Expected value is also known as mean value or average value. When the raw data is not given, instead…

Q: If a company has workers with a median salary of $25K, and supervisors of $42k, managers of $79.5k…

A: topic - median of data

Q: Scott surveyed 40 friends on Facebook and asked them where they were born and where they went to…

A:

Q: A study of 552 first-year college students asked about their preferences for online resources. One…

A: Introduction: It is required to choose the correct options.

Q: A major baseball league season came to an abrupt end in the middle of sporting season in 1999. In a…

A: The proportion is calculated by the random variable follows normal distribution with a sample size.…

Q: A fundraiser is offering a small gift to people making a donation. The donor can choose one of four…

A: The data shows four gifts with a mug, a t-shirt, a plush toy, and a water bottle.

Q: B. The average exam score for 10 students in a statistics class was 85. One student dropped the…

A: Given When n=10, average exam score for 10 students in a statistics x̄=85  When one student dropped…

Q: A survey was conducted in a section on which subject they like best. 55 likes Math, 50 likes…

A:

Q: 240 students responded to the imaginary student canteen survey. The survey asked whether the student…

A: We have taken an opinion on the quality of the food on a scale of 1-5, where 1 means the worst and 5…

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.