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: a. The proportion of Pennsylvanians with a high school diploma is equal to 0.83. b. The proportion…

A:

Q: Listed in the table below are the selling prices, number of bedrooms, number of full baths, and…

A: From the information, given that Let Y denotes the sale priceLet X1 denotes the number of…

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: For observation study, determine whether cross-sectional, retrospective, or prospective is used.…

A: There are types of study, some of them are cross sectional, retrospective or prospective.…

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: 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 searcher is interested in if there is a relationship between whether a student enjoys mathematics…

A: Given: α=0.025 The observed values are given as   Maths: Yes  Maths: No Total Stats: Yes  70 49…

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: On a hockey team, there are 14 players. The captain of the team scored on the team, and less than…

A: Given : There are 14 players Captain of the team scored 35 goals last year, which is more than 10…

Q: For the end of the semester, student evaluations. 6 out of the 39 students in a class completed the…

A:

Q: f) Let z be the value of the test statistic. Give the correct decision rule at a = 0.05 level of…

A: sample size, n = 120 30 learners reported that they smoke Proportion of learners who reported that…

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: Suzie

A:

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: 31 of 48% is what?

A: 31 of 48%

Q: 36% of the children in a school have a dog, 24% have a cat, and 12% have a dog and a cat. What…

A: The percent of those who have a cat also have a dog is, PDog|Cat=PDog ∩…

Q: Traffic department wants to know if automobile accident is a very serious problem in New York…

A: Hey, since there are multiple questions posted, we will answer first three questions. If you want…

Q: Ritais considering moving to Little Rapids for a new job. During hersearch for a house, she…

A: Since the prices are in the 45th percentile which means that the prices are more than 45% of the…

Q: As part of your project, you collected 100 or more data. See link below. Two of the data columns…

A: Note: Hi there! Thank you for posting the question. As your question has asked to use Statcrunch…

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 the research situations below, describe whether the researcher is conducting an experiment or a…

A: The researcher wants to determine whether honeybees have a preference for flowers.So, the apiarist…

Q: Colin is a student in a consumer mathematics class creating a report on the annual interest rates of…

A: Using excel, the required z-score for each type of bank can be calculated as; 1. Enter the data into…

Q: a. What test will you do? b. What are the hypotheses? c. What is the decision rule? d. Calculate the…

A: b) The null and alternative hypotheses are below: H0 :There is no difference in the mean scores of…

Q: A Malaysian swimming coach wanted to see if working with a sports psychologist would improve the…

A: Scatter Plot: Scatter plot is the graphical representation of the relationship between two variables…

Q: 1. Given the scores of students, make a frequency distribution table with class of 8. 2. Find the…

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

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…

Q: The City of Windsor Department of Parks and Recreation is planning to build a recreation centre in…

A: The given table shows the percentages of people who expressed interest in various activities.

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: Find an article of your choice which uses proportions, and copy and paste the address of that…

A: The objective of the question is to understand the concept of sample proportions and how they are…

Q: 2.) Megan correctly spelled 45 out of 50 words in a spelling competition. Justin spelled 27 out of…

A:

Q: Several years ago, two companies merged. One of the concerns after the merger was the increasing…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

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: 15 mothers were asked which brand of milk they prefer for their children. The choices are Nido,…

A: "A certainty span is a scope of values that is probably going to incorporate" the "populace…

Q: A group of college DJs surveyed students to find out what music to plan for their upcoming parties.…

A: event  A : prefer dubstep     P(A) = 0.30B :like trance music   P(B) = 0.25P(A∩B) = 0.15P(B∩A') = ?

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

A:

Q: In a statistics activity, students are asked to spin a penny and a dime and determine the proportion…

A: Please see the attachment.......

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

A:

Q: The brand manager for a brand of toothpaste must plan a campaign designed to increase brand…

A:

Q: A parking lot contains 10 vehicles. One is a new electric car that has only three wheels. The other…

A: The data of the wheels will be:   3, 4 , 4 ,4, 4 , 4 ,4, 4 , 4 ,4     It can be clearly seen that…

Q: An electronics company wants to gauge public opinion on its products. They send out a business reply…

A: An electronic company wants to gauge public opinion on its product. The company wants the public…

Q: Camden read about a study in which 200 vegetarians were asked to sample a fruit bar. The study…

A: Given : 170 of the 200 vegetarians surveyed disliked the bar.  margin of error, E = 4% p = 170200 p…

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.