There are 250 students in a class. (A) James is ranked 20th in the class. What is James’ percentile rank? Enter a whole number as the answer. For example, if the percentile rank is the 72nd percentile, enter 72.(B) Sarah is ranked at the 94th percentile in the class, what is Sarah’s class rank? Enter a whole number as the answer. For example, if the class rank is the 3rd, en

Q: A restaurant server claims that 49% of the time he leaves candy with the bill, the customer "tips…

A: Given : n = 5 p = 0.49

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: In 2016 the Better Business Bureau settled 77% of complaints they received in the United States.…

A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…

Q: In a survey of 100 randomly selected dentists, 28 dentists recommended Pearly brand over the other 5…

A: The random variable X is the dentists recommended Pearly brand toothpaste The total sample size is…

Q: How would you report on the meaning of these polls to the party membership?

A: Here given A political party received an average of 34% support in recent polls plus or minus 3.4%,…

Q: The histogram below gives the length of service of members of the Department of Chemistry at a…

A: Given:

Q: As part of a statistics project, a teacher brings a bag of marbles containing 500 white marbles and…

A: The data collection method is Survey or Sample.

Q: Ms. Edwards counted the different types of plants in her garden. Refative Frequency Plants Frequency…

A: Given some frequency data, we have to find the relative frequencies and percentage of frequencies.

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: A class uses weighted averages to calculate your course grade.  Homework, quizzes, and discussions…

A: Given Information: Average used= Weighted averageFor Homework(W1)=25%For Quizzes(W2)=…

Q: Approximately 19% of music lovers like Country Music. Of those who do, 99% do not have mild brain…

A:

Q: Let say we want to compare risks of two company.  Yo want to see risks are the same or not.   The…

A: Sample size=26 for both companies (samples) Hence degrees of freedom=26+26-2=50

Q: The sixth grade students in Mrs Schoeners awesome math class were surveyed on their favorite…

A: Number of student participated in the survey 50 Percentage of student choose soccer 60% Therefore…

Q: Eight hundred student took a 90-point standardized examination. After the examination, the students…

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: Keiko asked 15 students how many courses they have taken so far at her college. Here is the list of…

A:

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: A math teacher gave her class two tests. 70% of the class passed both tests and 80% of the class…

A: Given,  Student passed in first test , Let it be A = 80% . Student passed in second test , Let it be…

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: 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: 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. 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: Assuming the requirements are met for the anchovies study and using a significance level of 10%, the…

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: 55% of high

A: Probability of participating = 0.55 Probability of playing in NCAA given participating = 0.05

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: In your biology class, your final grade is based on several things: a lab score, scores on two major…

A: given data    weightage(w) score(x) lab score 0.21 99 major test 1 0.22 88 major test 2…

Q: Approximately 25% of music lovers like Country Music. Of those who do, 5% have mild brain damage.…

A: Given: 25% of music lovers like Country Music. Of those who do like Country music, 5% have mild…

Q: (d) What is the nonresponse rate? (e) Suggest some methods that could be used in a future survey to…

A: The purpose of a survey is to examine the opinions, behaviors, or experiences of individuals or…

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: 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: A researcher is interested in determining if sleeping more hours the night before an exam will…

A: It is wanted to be determined by the researcher whether sleeping more hours the night before a test…

Q: Suppose that 35% of people own dogs. If you pick two people at random; what is the percent that they…

A: Solution: From the given information, the probability of people own dog is 0.35. Here, two people…

Q: Approximately 19% of music lovers like Country Music. Of those who do, 99% do not have mild brain…

A: It is given that, approximately 19% of music lovers like Country Music.

Q: ege students are foreign students the students at this university are foreign? %

A:

Q: The proportion of commuters on PSU – Berks campus is purported to be 65%. A professor believes this…

A: Given P0=65% = 0.65 Let X = Number of commuters on PSU  X = 200 n = 300

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.