A random sample of 40 students from each grade level was surveyed regarding their preference for a class field trip. If there are 180 members of the 8th grade class, then what percent preferred either the museum or the sports complex? Show your work.

Q: Four students achieve the following grades on their midterm which was out of 20 marks: 4, 4, 4, 20.…

A: The mode is 4 as its is the highest occurring frequency. So it will reflect the accuracy or more…

Q: a. The null and alternative hypotheses would be: Ho: Select an answer ✓ Select an answer ✓ H₁:…

A: Sample Mean  45.62   Standard Deviation (S1​)                       2.56 Sample…

Q: In planing for his children to go back to school Susan buys several items at a discount. Five items…

A: Given information: Five items at $1.29 each, three at $1.49 each, six at $1.79 and nine at $0.99.…

Q: The Chancellor uses the school surveys to gather information about all New York City Schools. Choose…

A: Since the Chancellor gather information about all the New York city schools. So for the best way to…

Q: A departmental store, P, has four competitors: Q, R, S, and T. Store P hires a consultant to…

A: The categorical variable is Store. There are 5 stores which follows Chi-square distribution. We have…

Q: Some jobs involve earning a commission on sales. Which of the following jobs would likely include…

A: The question is asking us to identify which jobs from the given list are likely to include…

Q: Mark and Don are planning to sell each of their marble collections at a garage sale. If Don has 3…

A: Let Mark has x number of marble Given that Don has 3 more than 4 times the marble Mark has.…

Q: An educational software company wants to compare the effectiveness of its computer animation for…

A: The group of people or things that the study is attempting to generalise to is referred to as the…

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: Right 48 45 50 41 42 44 41 47 Left 48 42 47 40 42 41 40 49 Assume a Normal distribution. What can be…

A: See below

Q: A person scored in the bottom 33% in a test. If the test scores are normally distributed then the…

A:

Q: se Brianna's sample to estimate the number of red gumballs in the jar.

A: Given that  Class jar containing 200 gumballs of two different colors  (Red and green) Brianna draws…

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: Colin drew a line of best fit for a set of data points on a scatter plot. Which statement is true…

A: In this question we have to conclude which statement is true.

Q: In a recent poll, 450 people were asked if they preferred cats or dogs. 52% said they preferred dogs…

A: Given data: n = 450  52% said they preferred dogs and 48% of people said they preferred cats, with a…

Q: Two math workshops were organized by the Math club of the school. The first workshop was attended by…

A: The operator "∩" denotes the intersection of sets. For example: A∩B denotes the set which contains…

Q: A survey was given to 18 students. One question asked about one-way distance the student had to…

A: Given data is12,8,4,5,26,41,1,8,10,10,3,28,32,10,85,7,5,15Arrange the data in ascending…

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: bookstore found out that 23% of their customers buy a book, 34% of their customers buy 2, and 39%…

A: Given : A bookstore found out that ; 23% of their customers buy 1 34% of  customers buy 2 books 39%…

Q: A newspaper reported on the topics that teenagers most want to discuss with their parents. The…

A: From the provided information, Sample size (n) = 508 37% would like to talk about school so the…

Q: In a crop of blueberries, there will be an average of 6500 berries with stdev = 318 %3D berries. The…

A: Given : Mean , μ= 6500 standard deviation, σ = 318

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

A:

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: Suppose that the results of a survey show that  24%  of people consider summer as their favorite…

A: Solution: From the given information, p=0.24 and E=0.02.

Q: In Music, Linda scored 70%, and her score was at the 85th percentile.  In Art, Linda scored 95%,…

A: It is given that the stated person's scores (in percentage) in Music and Art are 70% and 95%…

Q: Part b through f

A: Step 1:central limit theorem:The Central Limit Theorem (CLT) states that the sampling distribution…

Q: In a school survey, students showed these preferences for instructional materials. Answer the…

A:

Q: At a class, 40% are sophomores, and 50% of the students like fencing. Of the students that like…

A:

Q: In a recent poll, 360 people were asked if they preferred cats or dogs. 49% said they preferred dogs…

A:

Q: At a football game, 40 fans were randomly surveyed. Of the sampled fans, 6 named Daren as the best…

A: The objective of this question is to estimate the number of fans who would likely name Daren as the…

Q: 7.) Kayla recently took a multiple-choice quiz in social studies class. Her ratio of correct answers…

A:

Q: Is the average time to complete an obstacle course different when a patch is placed over the right…

A: From the provided information, Sample size (n) = 8 Level of significance (α) = 0.01

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 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 city official would like to know if there is public support for increasing funding for arts…

A: Here the city official is collecting the data by standing the concert hall after a show and surveys…

Q: Irse with a patch over one eye and then completed an he other eye. The completion times are shown…

A: sample size,n= 8 Mean (d̄) =Σd/n              = -10/8            = -1.25 standard…

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: Is the average time to complete an obstacle course different when a patch is placed over the right…

A: The data shows the obstacle course with a patch over one eye and then completed an equally difficult…

Q: . A. Ventura is interested in determining what kinds and how many pets people own in Bakersfield. He…

A: Provided information is, Dr. A. Ventura is interested in determining what kinds and how many pets…

Q: 9. Challenge A bag contains 200 red and blue marbles. Three people each took samples of 25 marbles…

A: a. To combine the samples and make a prediction, we can use the proportion of red marbles in the…

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.